{"title":"Transmission \u0026 Drivetrain","description":"","products":[{"product_id":"clutch-masters-fx250-clutch-kit-987-cayman-cayman-s","title":"Clutch Masters FX Series Clutch Kit (987 Cayman)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2006 - 2008 Porsche Cayman \/ S (2.7L and 3.4L non-DFI)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2009 - 2011 Porsche Cayman (2.9L)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe FX250 System uses the Power Plus I Pressure Plate and a hybrid combination of Clutch Masters New Formula Button on one side and a heavy-duty Steel Back Organic friction lining on the other. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style. The FX250 clutch system has a higher holding capacity than a traditional full faced Kevlar without compromising the street friendly characteristics Clutch Masters is known for.\u003c\/p\u003e\n\u003cp\u003eNote, the 250R, 350R, and FX500 kits all feature an unsprung clutch disc, meant for race use only in combination with a Single Mass Flywheel, also available from Clutchmasters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eKit Includes\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePressure Plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClutch Disc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThrow-out Bearing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePilot Bearing or Bushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFX100 - STREET - 70% Increased holding capacity\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX250 - STREET- 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX350 - STREET\/RACE - 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX400 - RACE\/STREET - 170% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX500 - RACE USE ONLY - 200% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAbout Clutch Masters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/CM.jpg?v=1472158582\" alt=\"\" width=\"235\" height=\"83\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eHigh Technology Makes the Difference\u003c\/div\u003e\n\u003cp\u003eHistorically, high performance clutches have been a compromise. While improving holding or clamping pressure, manufacturers nearly always increase pedal pressure to an uncomfortable point, especially for stop-and-go traffic.\u003c\/p\u003e\n\u003cp\u003eBesides drivability concerns, additional pedal pressure can adversely affect stock clutch linkage and cause premature thrust bearing wear, leading to missed shifts, damaged clutch components, and even engine destruction.\u003c\/p\u003e\n\u003cp\u003eToday, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technique, Clutch Masters has increased clamping power, often without changing pedal pressure.\u003c\/p\u003e\n\u003cp\u003eExcessively increased pedal pressure, as found in many of today's traditional high performance clutches, places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in most of today's sport compact automobiles. Placing undue stress on the thrust bearing typically causes the bearing to wear prematurely or fail altogether. This failure can lead to catastrophic internal engine damage.\u003c\/p\u003e\n\u003cp\u003eA clutch, simply put, is a friction device that disengages and engages the engine from the transmission to allow for transition from motionless to movement and for gear changes. For street applications a smooth transition of power is essential while still being able to transfer all the power of the engine to the transmission. As power output of engines increase and demands on clutches become greater - for example high performance street or racing cars - the holding and clamping capacity of a clutch also must increase. This is where Clutch Masters' innovative engineering comes into play.\u003c\/p\u003e\n\u003cdiv\u003eClamping Force vs. Pedal Pressure\u003c\/div\u003e\n\u003cp\u003eDesigning heavy duty and high performance clutches with a very high clamp load and incredible coefficient of friction is a fairly simple engineering task. To do so without increasing pedal pressure has not been so easy. Even the education process of changing opinions that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.\u003c\/p\u003e\n\u003cp\u003eClutch Masters, a premier manufacturer of fine quality clutches since 1976, has taken this experience and a clean sheet of paper to re-engineer their line of performance clutches to address these problems. The proof of this success is now available from Clutch Masters as a complete line of clutch systems for high performance street and racing use. It is the first major breakthrough in performance clutches in over four decades.\u003c\/p\u003e\n\u003cp\u003eFollowing are ways of increasing clamp load. The methods vary in sophistication and effectiveness:\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eHeat Treating\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe diaphragm, or spring, is heat treated to increase spring tension for 10-40% more clamping force. This typically makes the diaphragm more brittle and more subject to premature failure. Many high performance clutch manufacturers use this procedure. Clutch Masters has perfected a more precise method of heat-treating its diaphragms to maintain consistent clamping force without compromising structural integrity.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDouble Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe double diaphragm is a method of increasing clamping force by stacking two diaphragms on top of each other. This will typically achieve the desired clamping force but will also increase the pedal pressure to a very high rate. For FX 500 and Multiple Disc set-ups, Clutch Masters uses two separate heat treating processes - one for each diaphragm - to ensure perfect compatibility between the two diaphragms. Additionally, there is a special friction-reducing material between the diaphragms to provide optimum clamping force while maintaining an ultra smooth operation.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThicker Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eA thicker (than stock) diaphragm allows extra clamping force but is considered to be an on or off style clutch. Smooth engagement is severely compromised with the thick diaphragm due to the reduced elasticity of the thicker material. Clutch Masters does not use this technique.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHi-Leverage\u003csup\u003etm\u003c\/sup\u003e Pressure Plate\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eBy re-engineering the pressure plate leverage ring (moving it closer to the pivot point), Clutch Masters solves the clamping vs. pedal pressure problem in a unique way. By moving the pressure ring, Clutch Masters Hi-Leverage\u003csup\u003etm \u003c\/sup\u003ePressure Plates take mechanical advantage of the leverage principle. By moving the leverage ring closer to the pivot point, the pressure applied to the plate is increased significantly without unnecessarily increasing pedal pressure, as is typically the case in other clutches. This Hi-Leverage\u003csup\u003etm\u003c\/sup\u003efeature is unique to the high-performance clutch industry.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003e***By combining these various methods of increasing clamping pressure with their re-engineered discs, Clutch Masters has developed a unique way of substantially increasing clutch performance without any of the negative side affects usually found in the typical high performance clutch.****\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Difference:\u003c\/p\u003e\n\u003cp\u003eClutch Masters clutches are true High Performance Clutch Systems and are technologically superior to anything currently on the market.\u003c\/p\u003e\n\u003cp\u003eTo develop a clutch with all the desired performance characteristics for intended applications is the challenge of a high performance clutch company. The Clutch Masters clutch system is unique in the industry. We use Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technology (refer to the Pressure Plate section) in our pressure plates, which significantly increases clamping force with no unnecessary increase in pedal pressure. Discs are designed either with reduced Marcel or a solid hub design to take advantage of our Hi-Leverage\u003csup\u003etm\u003c\/sup\u003epressure plate. The combination of these cutting edge technologies creates the finest clutch system on the market.\u003c\/p\u003e\n\u003cp\u003eAdditionally, Clutch Masters, with over 35 years in the industry, has researched hundreds of friction materials and uses only the best materials available for each intended application. By combining the optimum clamping force with the finest friction materials - each with their own unique coefficient of friction - Clutch Masters has developed a line of clutches that provide ultimate performance in virtually any severe environment.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecific Purposes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll Clutch Masters clutches are specifically designed for varying stages of high performance and\/or racing uses. From the street performance enthusiast who requires more grab than a stock unit while retaining everyday drivability, to the racer who needs a clutch to survive under the grueling conditions of competition, Clutch Masters offers complete clutch systems.\u003c\/div\u003e\n\u003cp\u003eWhen the Class 30 Grey Iron material of a typical pressure plate is not suitable, Clutch Masters uses doubly strong Ductile Iron, which is the case with most CM clutches.\u003c\/p\u003e\n\u003cp\u003eThe friction material found on all OE discs and many high performance discs is simply riveted to the disc center section. Under severe use and\/or high RPM applications, the disc material can fragment and break apart, becoming dislodged from the disc center section. Once this occurs, the clutch has failed completely and is rendered inoperable. Clutch Masters has solved this common problem on their street and street\/strip discs by bonding a special steel backing plate (see disc technology and figure X) to the friction material. This unique feature provides significantly increased heat dissipation properties - heat is the #1 enemy of the clutch - and very high structural integrity to keep the disc intact under severe applications.\u003c\/p\u003e\n\u003cp\u003eRacing Only discs use solid center sections to give all the reliability and performance they need on the track. Warning: These solid hub discs are not meant for street applications as they transfer very high shock loads to the transmission, causing premature transmission failure, and will chatter upon starting from a stop.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Weakest Link\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eIn the battle of Man vs. Machine, whenever possible, engineers build into any given mechanical system a point of failure, or weak point, which is designed to wear or fail, therefore preventing damaging major components or even catastrophic failure of the entire system.\u003c\/div\u003e\n\u003cp\u003eIn the battle of Engine vs. Transmission, the clutch is designed to be that weak link. It is ultimately less expensive to replace a clutch than an engine or transmission. The challenge in building a high performance clutch is to build the unit for different intended heavy duty or severe applications which will hold the power; not break the transmission or internal engine components and retain an overall smooth operation of the entire system (whenever possible). This is the balancing act that Clutch Masters has perfected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clutch Masters","offers":[{"title":"FX350","offer_id":31965936484436,"sku":"clm20606-HDFF-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX500","offer_id":31965936582740,"sku":"clm20606-HDB6-R","price":1237.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/e513a057-3641-4f11-998f-c3622da42d2a-420.jpg?v=1527265649"},{"product_id":"os-giken-super-lock-lsd","title":"OS Giken Super Lock LSD (Cayman \/ Boxster 981)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2013 - 2016 Porsche Boxster \/ Boxster S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2014 - 2016 Porsche Cayman \/ Cayman S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2015 - 2016 Porsche Cayman GTS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan\u003eThe OS Giken Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. Learn more about the OS Giken Super Lock limited-slip differential below.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Design\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eMiniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePatented pressure ring design allows for smooth, progressive locking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Construction\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are chemically heat treated for maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case is machined from a single billet piece to ensure uniformity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Overall Performance\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns \/ street driving, but can still transmit maximum power to the drive wheels under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOperation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDue to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road\/weather conditions, allowing for a safer driving experience\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout OS Giken\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/OSGikenLogo_150px_-01_medium.png?v=1473799315\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStarting in the early 1960's, Osamu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe TC16-MA2 twin cam head for Datsun L-series was designed in 1974 and successfully campaigned on the international rally and circuit racing scene; on the streets of Japan it ruled as king and was virtually untouchable. Producing 230+hp naturally aspirated (quite a feat for 4-cylinder engines in Japan during that time), a very limited number of units were produced to supply various Datsun race teams. The 6-cylinder version (TC24-B1) followed shortly thereafter, with a specific target of outperforming the fastest production car of the time, the Porsche 930 turbo. Featuring twin cams, pent-roof combustion chambers, and 24-valves., power output was in the 320+hp range (about double the power output of the OEM L28 motor).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith the amount of power the OS built motors were generating, no clutches available at the time were able to sufficiently transfer power down the driveline, so Mr. Okazaki took the initiative to analyze what was available and redesign something to improve performance and durability. The end result was the Racing Line of OS Giken clutches: smaller disk diameter, lighter assembly weight, increased durability\/power capacity with decreased pedal pressure. OS clutches have since become a major part of the product lineup, with new improvements being developed and tested continually.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe next weak link for high performance applications proved to be the transmission, so once again OS set out to improve on components already available in the market. OS gear kits are designed to optimize the gear ratios for sports\/race driving, but with the knowledge and experience garnered from years of manufacturing, power capacity also increased immensely, furthering OS' reputation for producing extremely durable components.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs time passed and technology progressed, the need for a better limited-slip differential presented itself and once again OS set out on a mission to \"build a better mousetrap\". The clutch-type LSD's popular at the time served their purpose, but were commonly known to require regular maintenance\/service, performed inconsistently, were noisy, and not comfortable for normal street driving. Just as he had done with engine, clutch, and gear development, Mr. Okazaki came up with a completely new design with the purpose of eliminating all the shortfalls of parts available at the time. The end result of his efforts resulted in the Lock Timing Control System and Spline-Through Side Gear designs, which were patented and implemented into the all-new Superlock LSD, a revolution in limited-slip technology that could offer all the benefits of a limited-slip differential without the shortfalls inherent with other products offered from competitors.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFrom Mr. Okazaki's humble beginnings tinkering with motorcycle parts at home, OS Giken has evolved and grown over the years, building and cementing a reputation as one of the best racing drivetrain parts manufacturers in the world. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines. Production and design capabilities for engine and drivetrain components are OS Giken's specialty, but the company has the ability to design and build just about anything mechanical. As the design, construction, and usage of the automobile evolves, OS Giken looks forward to the challenges presented to find room for improvement! \u003c\/span\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Manual Transmission","offer_id":25927171841,"sku":"osgPR153-HA","price":1950.0,"currency_code":"USD","in_stock":true},{"title":"PDK w\/ Open Differential","offer_id":12401650106423,"sku":"osgPR152-HC","price":2820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/f4c7a715-11cc-4b64-9463-1620c50861c7-420.jpg?v=1525407270"},{"product_id":"os-giken-super-lock-lsd-for-pdk-991-997-987","title":"OS Giken Super Lock LSD for PDK (991)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2013 - 2015 Porsche 911 (PDK w\/ Open Diff Only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan\u003eThe OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. Purchase it for your Porsche 991 PDK online.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Design\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eMiniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePatented pressure ring design allows for smooth, progressive locking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Construction\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are chemically heat treated for maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case is machined from a single billet piece to ensure uniformity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Overall Performance\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eOS Super Lock LSD\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e standard spec\u003c\/span\u003e allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns \/ street driving, but can still transmit maximum power to the drive wheels under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOperation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDue to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road\/weather conditions, allowing for a safer driving experience\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout OS Giken\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/OSGikenLogo_150px_-01_medium.png?v=1473799315\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStarting in the early 1960's, Osamu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe TC16-MA2 twin cam head for Datsun L-series was designed in 1974 and successfully campaigned on the international rally and circuit racing scene; on the streets of Japan it ruled as king and was virtually untouchable. Producing 230+hp naturally aspirated (quite a feat for 4-cylinder engines in Japan during that time), a very limited number of units were produced to supply various Datsun race teams. The 6-cylinder version (TC24-B1) followed shortly thereafter, with a specific target of outperforming the fastest production car of the time, the Porsche 930 turbo. Featuring twin cams, pent-roof combustion chambers, and 24-valves., power output was in the 320+hp range (about double the power output of the OEM L28 motor).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith the amount of power the OS built motors were generating, no clutches available at the time were able to sufficiently transfer power down the driveline, so Mr. Okazaki took the initiative to analyze what was available and redesign something to improve performance and durability. The end result was the Racing Line of OS Giken clutches: smaller disk diameter, lighter assembly weight, increased durability\/power capacity with decreased pedal pressure. OS clutches have since become a major part of the product lineup, with new improvements being developed and tested continually.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe next weak link for high performance applications proved to be the transmission, so once again OS set out to improve on components already available in the market. OS gear kits are designed to optimize the gear ratios for sports\/race driving, but with the knowledge and experience garnered from years of manufacturing, power capacity also increased immensely, furthering OS' reputation for producing extremely durable components.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs time passed and technology progressed, the need for a better limited-slip differential presented itself and once again OS set out on a mission to \"build a better mousetrap\". The clutch-type LSD's popular at the time served their purpose, but were commonly known to require regular maintenance\/service, performed inconsistently, were noisy, and not comfortable for normal street driving. Just as he had done with engine, clutch, and gear development, Mr. Okazaki came up with a completely new design with the purpose of eliminating all the shortfalls of parts available at the time. The end result of his efforts resulted in the Lock Timing Control System and Spline-Through Side Gear designs, which were patented and implemented into the all-new Superlock LSD, a revolution in limited-slip technology that could offer all the benefits of a limited-slip differential without the shortfalls inherent with other products offered from competitors.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFrom Mr. Okazaki's humble beginnings tinkering with motorcycle parts at home, OS Giken has evolved and grown over the years, building and cementing a reputation as one of the best racing drivetrain parts manufacturers in the world. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines. Production and design capabilities for engine and drivetrain components are OS Giken's specialty, but the company has the ability to design and build just about anything mechanical. As the design, construction, and usage of the automobile evolves, OS Giken looks forward to the challenges presented to find room for improvement! \u003c\/span\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":33633661261,"sku":"osgPR152-HC","price":2820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/f4c7a715-11cc-4b64-9463-1620c50861c7-420_513eb88a-2893-4594-8e61-8244d807b0dd.jpg?v=1525407278"},{"product_id":"clutch-masters-lightweight-aluminum-flywheel-987-cayman-boxster","title":"Clutch Masters Aluminum Lightweight Flywheel (987 Cayman \/ Boxster)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\" mce-data-marked=\"1\"\u003e2005 - 2012 Porsche Cayman \u0026amp; Boxster (2.5L, 2.7L, 3.2L, 3.4L)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClutch Masters 2-Piece Billet Aluminum Flywheels are made from the highest quality 6061-T6 or better grade aluminum. This material is chosen for its properties that are much more suitable for the environment than the one-piece chromoly units, with regards to heat dissipation and serviceability. The replaceable friction surface used is incredibly tough high carbon steel. This allows mating with any type of clutch friction material without worry. The starter ring gears are made of high carbon heat-treated steel for long lasting durability. The unit is buttoned together with military grade fasteners to make the premier flywheel in the industry.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFeatures\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced mass equals increased acceleration\u003c\/li\u003e\n\u003cli\u003eA lightweight flywheel works particularly well with turbo-charged engines because it reduces typical turbo lag\u003c\/li\u003e\n\u003cli\u003eIncreased supercharger efficiency due to less parasitic drag on the crank\u003c\/li\u003e\n\u003cli\u003eImproved mid-range torque in a normally aspirated engine due to not having to overcome the heavy weight of a stock flywheel\u003c\/li\u003e\n\u003cli\u003eCM uses only 6061-T6 aircraft grade or better billet aluminum in the manufacturer of its flywheels\u003c\/li\u003e\n\u003cli\u003eCM uses High Carbon steel for the friction surface\u003c\/li\u003e\n\u003cli\u003eCM uses an OEM steel ring gear secured by bolts\u003c\/li\u003e\n\u003cli\u003eCM offers a limited lifetime warranty\u003c\/li\u003e\n\u003cli\u003eCM Billet Aluminum Flywheels meet SFI Spec 1.1 or 1.2\u003c\/li\u003e\n\u003cli\u003eWeight: 14lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAbout Clutch Masters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/CM.jpg?v=1472158582\" alt=\"\" width=\"235\" height=\"83\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eHigh Technology Makes the Difference\u003c\/div\u003e\n\u003cp\u003eHistorically, high performance clutches have been a compromise. While improving holding or clamping pressure, manufacturers nearly always increase pedal pressure to an uncomfortable point, especially for stop-and-go traffic.\u003c\/p\u003e\n\u003cp\u003eBesides drivability concerns, additional pedal pressure can adversely affect stock clutch linkage and cause premature thrust bearing wear, leading to missed shifts, damaged clutch components, and even engine destruction.\u003c\/p\u003e\n\u003cp\u003eToday, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technique, Clutch Masters has increased clamping power, often without changing pedal pressure.\u003c\/p\u003e\n\u003cp\u003eExcessively increased pedal pressure, as found in many of today's traditional high performance clutches, places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in most of today's sport compact automobiles. Placing undue stress on the thrust bearing typically causes the bearing to wear prematurely or fail altogether. This failure can lead to catastrophic internal engine damage.\u003c\/p\u003e\n\u003cp\u003eA clutch, simply put, is a friction device that disengages and engages the engine from the transmission to allow for transition from motionless to movement and for gear changes. For street applications a smooth transition of power is essential while still being able to transfer all the power of the engine to the transmission. As power output of engines increase and demands on clutches become greater - for example high performance street or racing cars - the holding and clamping capacity of a clutch also must increase. This is where Clutch Masters' innovative engineering comes into play.\u003c\/p\u003e\n\u003cdiv\u003eClamping Force vs. Pedal Pressure\u003c\/div\u003e\n\u003cp\u003eDesigning heavy duty and high performance clutches with a very high clamp load and incredible coefficient of friction is a fairly simple engineering task. To do so without increasing pedal pressure has not been so easy. Even the education process of changing opinions that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.\u003c\/p\u003e\n\u003cp\u003eClutch Masters, a premier manufacturer of fine quality clutches since 1976, has taken this experience and a clean sheet of paper to re-engineer their line of performance clutches to address these problems. The proof of this success is now available from Clutch Masters as a complete line of clutch systems for high performance street and racing use. It is the first major breakthrough in performance clutches in over four decades.\u003c\/p\u003e\n\u003cp\u003eFollowing are ways of increasing clamp load. The methods vary in sophistication and effectiveness:\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eHeat Treating\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe diaphragm, or spring, is heat treated to increase spring tension for 10-40% more clamping force. This typically makes the diaphragm more brittle and more subject to premature failure. Many high performance clutch manufacturers use this procedure. Clutch Masters has perfected a more precise method of heat-treating its diaphragms to maintain consistent clamping force without compromising structural integrity.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDouble Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe double diaphragm is a method of increasing clamping force by stacking two diaphragms on top of each other. This will typically achieve the desired clamping force but will also increase the pedal pressure to a very high rate. For FX 500 and Multiple Disc set-ups, Clutch Masters uses two separate heat treating processes - one for each diaphragm - to ensure perfect compatibility between the two diaphragms. Additionally, there is a special friction-reducing material between the diaphragms to provide optimum clamping force while maintaining an ultra smooth operation.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThicker Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eA thicker (than stock) diaphragm allows extra clamping force but is considered to be an on or off style clutch. Smooth engagement is severely compromised with the thick diaphragm due to the reduced elasticity of the thicker material. Clutch Masters does not use this technique.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHi-Leverage\u003csup\u003etm\u003c\/sup\u003e Pressure Plate\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eBy re-engineering the pressure plate leverage ring (moving it closer to the pivot point), Clutch Masters solves the clamping vs. pedal pressure problem in a unique way. By moving the pressure ring, Clutch Masters Hi-Leverage\u003csup\u003etm \u003c\/sup\u003ePressure Plates take mechanical advantage of the leverage principle. By moving the leverage ring closer to the pivot point, the pressure applied to the plate is increased significantly without unnecessarily increasing pedal pressure, as is typically the case in other clutches. This Hi-Leverage\u003csup\u003etm\u003c\/sup\u003efeature is unique to the high-performance clutch industry.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003e***By combining these various methods of increasing clamping pressure with their re-engineered discs, Clutch Masters has developed a unique way of substantially increasing clutch performance without any of the negative side affects usually found in the typical high performance clutch.****\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Difference:\u003c\/p\u003e\n\u003cp\u003eClutch Masters clutches are true High Performance Clutch Systems and are technologically superior to anything currently on the market.\u003c\/p\u003e\n\u003cp\u003eTo develop a clutch with all the desired performance characteristics for intended applications is the challenge of a high performance clutch company. The Clutch Masters clutch system is unique in the industry. We use Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technology (refer to the Pressure Plate section) in our pressure plates, which significantly increases clamping force with no unnecessary increase in pedal pressure. Discs are designed either with reduced Marcel or a solid hub design to take advantage of our Hi-Leverage\u003csup\u003etm\u003c\/sup\u003epressure plate. The combination of these cutting edge technologies creates the finest clutch system on the market.\u003c\/p\u003e\n\u003cp\u003eAdditionally, Clutch Masters, with over 35 years in the industry, has researched hundreds of friction materials and uses only the best materials available for each intended application. By combining the optimum clamping force with the finest friction materials - each with their own unique coefficient of friction - Clutch Masters has developed a line of clutches that provide ultimate performance in virtually any severe environment.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecific Purposes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll Clutch Masters clutches are specifically designed for varying stages of high performance and\/or racing uses. From the street performance enthusiast who requires more grab than a stock unit while retaining everyday drivability, to the racer who needs a clutch to survive under the grueling conditions of competition, Clutch Masters offers complete clutch systems.\u003c\/div\u003e\n\u003cp\u003eWhen the Class 30 Grey Iron material of a typical pressure plate is not suitable, Clutch Masters uses doubly strong Ductile Iron, which is the case with most CM clutches.\u003c\/p\u003e\n\u003cp\u003eThe friction material found on all OE discs and many high performance discs is simply riveted to the disc center section. Under severe use and\/or high RPM applications, the disc material can fragment and break apart, becoming dislodged from the disc center section. Once this occurs, the clutch has failed completely and is rendered inoperable. Clutch Masters has solved this common problem on their street and street\/strip discs by bonding a special steel backing plate (see disc technology and figure X) to the friction material. This unique feature provides significantly increased heat dissipation properties - heat is the #1 enemy of the clutch - and very high structural integrity to keep the disc intact under severe applications.\u003c\/p\u003e\n\u003cp\u003eRacing Only discs use solid center sections to give all the reliability and performance they need on the track. Warning: These solid hub discs are not meant for street applications as they transfer very high shock loads to the transmission, causing premature transmission failure, and will chatter upon starting from a stop.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Weakest Link\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eIn the battle of Man vs. Machine, whenever possible, engineers build into any given mechanical system a point of failure, or weak point, which is designed to wear or fail, therefore preventing damaging major components or even catastrophic failure of the entire system.\u003c\/div\u003e\n\u003cp\u003eIn the battle of Engine vs. Transmission, the clutch is designed to be that weak link. It is ultimately less expensive to replace a clutch than an engine or transmission. The challenge in building a high performance clutch is to build the unit for different intended heavy duty or severe applications which will hold the power; not break the transmission or internal engine components and retain an overall smooth operation of the entire system (whenever possible). This is the balancing act that Clutch Masters has perfected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clutch Masters","offers":[{"title":"987.1 (Aluminum Only)","offer_id":39592783904852,"sku":"clmFW-005-AL","price":995.0,"currency_code":"USD","in_stock":true},{"title":"987.2 (Steel Only)","offer_id":39592783937620,"sku":"clmFW-971-SF","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/group-0031c615-1763-4395-8ec2-f85d5142646b-420.jpg?v=1527265650"},{"product_id":"clutch-masters-fx250-clutch-kit-987-boxster-boxster-s","title":"Clutch Masters FX Series Clutch Kit (987 Boxster 2.7L)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2005 - 2007 Porsche \u003cstrong\u003eBoxster\u003c\/strong\u003e (2.7L Only)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FX250 System uses the Power Plus I Pressure Plate and a hybrid combination of Clutch Masters New Formula Button on one side and a heavy-duty Steel Back Organic friction lining on the other. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style. The FX250 clutch system has a higher holding capacity than a traditional full faced Kevlar without compromising the street friendly characteristics Clutch Masters is known for.\u003c\/p\u003e\n\u003cp\u003eNote, the 250R, 350R, and FX500 kits all feature an unsprung clutch disc, meant for race use only in combination with a Single Mass Flywheel, also available from Clutchmasters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eKit Includes\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePressure Plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch Disc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThrow-out Bearing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePilot Bearing or Bushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAlignment Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFX100 - STREET - 70% Increased holding capacity\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX250 - STREET- 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX350 - STREET\/RACE - 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX400 - RACE\/STREET - 170% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX500 - RACE USE ONLY - 200% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAbout Clutch Masters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/CM.jpg?v=1472158582\" alt=\"\" width=\"235\" height=\"83\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eHigh Technology Makes the Difference\u003c\/div\u003e\n\u003cp\u003eHistorically, high performance clutches have been a compromise. While improving holding or clamping pressure, manufacturers nearly always increase pedal pressure to an uncomfortable point, especially for stop-and-go traffic.\u003c\/p\u003e\n\u003cp\u003eBesides drivability concerns, additional pedal pressure can adversely affect stock clutch linkage and cause premature thrust bearing wear, leading to missed shifts, damaged clutch components, and even engine destruction.\u003c\/p\u003e\n\u003cp\u003eToday, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technique, Clutch Masters has increased clamping power, often without changing pedal pressure.\u003c\/p\u003e\n\u003cp\u003eExcessively increased pedal pressure, as found in many of today's traditional high performance clutches, places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in most of today's sport compact automobiles. Placing undue stress on the thrust bearing typically causes the bearing to wear prematurely or fail altogether. This failure can lead to catastrophic internal engine damage.\u003c\/p\u003e\n\u003cp\u003eA clutch, simply put, is a friction device that disengages and engages the engine from the transmission to allow for transition from motionless to movement and for gear changes. For street applications a smooth transition of power is essential while still being able to transfer all the power of the engine to the transmission. As power output of engines increase and demands on clutches become greater - for example high performance street or racing cars - the holding and clamping capacity of a clutch also must increase. This is where Clutch Masters' innovative engineering comes into play.\u003c\/p\u003e\n\u003cdiv\u003eClamping Force vs. Pedal Pressure\u003c\/div\u003e\n\u003cp\u003eDesigning heavy duty and high performance clutches with a very high clamp load and incredible coefficient of friction is a fairly simple engineering task. To do so without increasing pedal pressure has not been so easy. Even the education process of changing opinions that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.\u003c\/p\u003e\n\u003cp\u003eClutch Masters, a premier manufacturer of fine quality clutches since 1976, has taken this experience and a clean sheet of paper to re-engineer their line of performance clutches to address these problems. The proof of this success is now available from Clutch Masters as a complete line of clutch systems for high performance street and racing use. It is the first major breakthrough in performance clutches in over four decades.\u003c\/p\u003e\n\u003cp\u003eFollowing are ways of increasing clamp load. The methods vary in sophistication and effectiveness:\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eHeat Treating\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe diaphragm, or spring, is heat treated to increase spring tension for 10-40% more clamping force. This typically makes the diaphragm more brittle and more subject to premature failure. Many high performance clutch manufacturers use this procedure. Clutch Masters has perfected a more precise method of heat-treating its diaphragms to maintain consistent clamping force without compromising structural integrity.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDouble Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe double diaphragm is a method of increasing clamping force by stacking two diaphragms on top of each other. This will typically achieve the desired clamping force but will also increase the pedal pressure to a very high rate. For FX 500 and Multiple Disc set-ups, Clutch Masters uses two separate heat treating processes - one for each diaphragm - to ensure perfect compatibility between the two diaphragms. Additionally, there is a special friction-reducing material between the diaphragms to provide optimum clamping force while maintaining an ultra smooth operation.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThicker Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eA thicker (than stock) diaphragm allows extra clamping force but is considered to be an on or off style clutch. Smooth engagement is severely compromised with the thick diaphragm due to the reduced elasticity of the thicker material. Clutch Masters does not use this technique.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHi-Leverage\u003csup\u003etm\u003c\/sup\u003e Pressure Plate\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eBy re-engineering the pressure plate leverage ring (moving it closer to the pivot point), Clutch Masters solves the clamping vs. pedal pressure problem in a unique way. By moving the pressure ring, Clutch Masters Hi-Leverage\u003csup\u003etm \u003c\/sup\u003ePressure Plates take mechanical advantage of the leverage principle. By moving the leverage ring closer to the pivot point, the pressure applied to the plate is increased significantly without unnecessarily increasing pedal pressure, as is typically the case in other clutches. This Hi-Leverage\u003csup\u003etm\u003c\/sup\u003efeature is unique to the high-performance clutch industry.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003e***By combining these various methods of increasing clamping pressure with their re-engineered discs, Clutch Masters has developed a unique way of substantially increasing clutch performance without any of the negative side affects usually found in the typical high performance clutch.****\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Difference:\u003c\/p\u003e\n\u003cp\u003eClutch Masters clutches are true High Performance Clutch Systems and are technologically superior to anything currently on the market.\u003c\/p\u003e\n\u003cp\u003eTo develop a clutch with all the desired performance characteristics for intended applications is the challenge of a high performance clutch company. The Clutch Masters clutch system is unique in the industry. We use Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technology (refer to the Pressure Plate section) in our pressure plates, which significantly increases clamping force with no unnecessary increase in pedal pressure. Discs are designed either with reduced Marcel or a solid hub design to take advantage of our Hi-Leverage\u003csup\u003etm\u003c\/sup\u003epressure plate. The combination of these cutting edge technologies creates the finest clutch system on the market.\u003c\/p\u003e\n\u003cp\u003eAdditionally, Clutch Masters, with over 35 years in the industry, has researched hundreds of friction materials and uses only the best materials available for each intended application. By combining the optimum clamping force with the finest friction materials - each with their own unique coefficient of friction - Clutch Masters has developed a line of clutches that provide ultimate performance in virtually any severe environment.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecific Purposes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll Clutch Masters clutches are specifically designed for varying stages of high performance and\/or racing uses. From the street performance enthusiast who requires more grab than a stock unit while retaining everyday drivability, to the racer who needs a clutch to survive under the grueling conditions of competition, Clutch Masters offers complete clutch systems.\u003c\/div\u003e\n\u003cp\u003eWhen the Class 30 Grey Iron material of a typical pressure plate is not suitable, Clutch Masters uses doubly strong Ductile Iron, which is the case with most CM clutches.\u003c\/p\u003e\n\u003cp\u003eThe friction material found on all OE discs and many high performance discs is simply riveted to the disc center section. Under severe use and\/or high RPM applications, the disc material can fragment and break apart, becoming dislodged from the disc center section. Once this occurs, the clutch has failed completely and is rendered inoperable. Clutch Masters has solved this common problem on their street and street\/strip discs by bonding a special steel backing plate (see disc technology and figure X) to the friction material. This unique feature provides significantly increased heat dissipation properties - heat is the #1 enemy of the clutch - and very high structural integrity to keep the disc intact under severe applications.\u003c\/p\u003e\n\u003cp\u003eRacing Only discs use solid center sections to give all the reliability and performance they need on the track. Warning: These solid hub discs are not meant for street applications as they transfer very high shock loads to the transmission, causing premature transmission failure, and will chatter upon starting from a stop.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Weakest Link\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eIn the battle of Man vs. Machine, whenever possible, engineers build into any given mechanical system a point of failure, or weak point, which is designed to wear or fail, therefore preventing damaging major components or even catastrophic failure of the entire system.\u003c\/div\u003e\n\u003cp\u003eIn the battle of Engine vs. Transmission, the clutch is designed to be that weak link. It is ultimately less expensive to replace a clutch than an engine or transmission. The challenge in building a high performance clutch is to build the unit for different intended heavy duty or severe applications which will hold the power; not break the transmission or internal engine components and retain an overall smooth operation of the entire system (whenever possible). This is the balancing act that Clutch Masters has perfected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clutch Masters","offers":[{"title":"FX250","offer_id":31962219610196,"sku":"clm20505-HD0F-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX250R","offer_id":31962219642964,"sku":"clm20505-HD0F-R","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX350","offer_id":31962219675732,"sku":"clm20505-HRFF-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX350R","offer_id":31962219708500,"sku":"clm20505-HDFF-R","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX400","offer_id":31962219741268,"sku":"clm20505-HDC6-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX500","offer_id":31962219774036,"sku":"clm20505-HDB6-R","price":1237.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/e513a057-3641-4f11-998f-c3622da42d2a-420_89b6101b-0dd9-45fc-ad68-067f0be8391a.jpg?v=1527265649"},{"product_id":"os-giken-super-lock-lsd-cayman-s-boxster-s-987","title":"OS Giken Super Lock LSD (Cayman S \/ Boxster S 987)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2005 - 2016 Porsche Boxster S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2006 - 2015 Porsche Cayman S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2008 Porsche RS 60\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2012 Porsche Cayman R\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eNote: Manual Transmission Only\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan\u003eThe OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Design\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eMiniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePatented pressure ring design allows for smooth, progressive locking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Construction\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are chemically heat treated for maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case is machined from a single billet piece to ensure uniformity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Overall Performance\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns \/ street driving, but can still transmit maximum power to the drive wheels under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOperation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDue to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road\/weather conditions, allowing for a safer driving experience\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout OS Giken\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/OSGikenLogo_150px_-01_medium.png?v=1473799315\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStarting in the early 1960's, Osamu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe TC16-MA2 twin cam head for Datsun L-series was designed in 1974 and successfully campaigned on the international rally and circuit racing scene; on the streets of Japan it ruled as king and was virtually untouchable. Producing 230+hp naturally aspirated (quite a feat for 4-cylinder engines in Japan during that time), a very limited number of units were produced to supply various Datsun race teams. The 6-cylinder version (TC24-B1) followed shortly thereafter, with a specific target of outperforming the fastest production car of the time, the Porsche 930 turbo. Featuring twin cams, pent-roof combustion chambers, and 24-valves., power output was in the 320+hp range (about double the power output of the OEM L28 motor).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith the amount of power the OS built motors were generating, no clutches available at the time were able to sufficiently transfer power down the driveline, so Mr. Okazaki took the initiative to analyze what was available and redesign something to improve performance and durability. The end result was the Racing Line of OS Giken clutches: smaller disk diameter, lighter assembly weight, increased durability\/power capacity with decreased pedal pressure. OS clutches have since become a major part of the product lineup, with new improvements being developed and tested continually.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe next weak link for high performance applications proved to be the transmission, so once again OS set out to improve on components already available in the market. OS gear kits are designed to optimize the gear ratios for sports\/race driving, but with the knowledge and experience garnered from years of manufacturing, power capacity also increased immensely, furthering OS' reputation for producing extremely durable components.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs time passed and technology progressed, the need for a better limited-slip differential presented itself and once again OS set out on a mission to \"build a better mousetrap\". The clutch-type LSD's popular at the time served their purpose, but were commonly known to require regular maintenance\/service, performed inconsistently, were noisy, and not comfortable for normal street driving. Just as he had done with engine, clutch, and gear development, Mr. Okazaki came up with a completely new design with the purpose of eliminating all the shortfalls of parts available at the time. The end result of his efforts resulted in the Lock Timing Control System and Spline-Through Side Gear designs, which were patented and implemented into the all-new Superlock LSD, a revolution in limited-slip technology that could offer all the benefits of a limited-slip differential without the shortfalls inherent with other products offered from competitors.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFrom Mr. Okazaki's humble beginnings tinkering with motorcycle parts at home, OS Giken has evolved and grown over the years, building and cementing a reputation as one of the best racing drivetrain parts manufacturers in the world. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines. Production and design capabilities for engine and drivetrain components are OS Giken's specialty, but the company has the ability to design and build just about anything mechanical. As the design, construction, and usage of the automobile evolves, OS Giken looks forward to the challenges presented to find room for improvement! \u003c\/span\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":7870599135287,"sku":"PR151-HA","price":1950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/f4c7a715-11cc-4b64-9463-1620c50861c7-420_57786c15-daf8-4c48-b869-b7f3e827966e.jpg?v=1525563964"},{"product_id":"os-giken-super-lock-lsd-for-pdk-cayman-boxster-987-2","title":"OS Giken Super Lock LSD for PDK (Cayman \/ Boxster 987.2)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2009 - 2012 Porsche Cayman S (PDK)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003e2012 Porsche Cayman R (PDK)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan\u003eThe OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Design\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eMiniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePatented pressure ring design allows for smooth, progressive locking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Construction\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are chemically heat treated for maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case is machined from a single billet piece to ensure uniformity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Overall Performance\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns \/ street driving, but can still transmit maximum power to the drive wheels under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOperation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDue to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road\/weather conditions, allowing for a safer driving experience\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout OS Giken\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/OSGikenLogo_150px_-01_medium.png?v=1473799315\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStarting in the early 1960's, Osamu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe TC16-MA2 twin cam head for Datsun L-series was designed in 1974 and successfully campaigned on the international rally and circuit racing scene; on the streets of Japan it ruled as king and was virtually untouchable. Producing 230+hp naturally aspirated (quite a feat for 4-cylinder engines in Japan during that time), a very limited number of units were produced to supply various Datsun race teams. The 6-cylinder version (TC24-B1) followed shortly thereafter, with a specific target of outperforming the fastest production car of the time, the Porsche 930 turbo. Featuring twin cams, pent-roof combustion chambers, and 24-valves., power output was in the 320+hp range (about double the power output of the OEM L28 motor).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith the amount of power the OS built motors were generating, no clutches available at the time were able to sufficiently transfer power down the driveline, so Mr. Okazaki took the initiative to analyze what was available and redesign something to improve performance and durability. The end result was the Racing Line of OS Giken clutches: smaller disk diameter, lighter assembly weight, increased durability\/power capacity with decreased pedal pressure. OS clutches have since become a major part of the product lineup, with new improvements being developed and tested continually.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe next weak link for high performance applications proved to be the transmission, so once again OS set out to improve on components already available in the market. OS gear kits are designed to optimize the gear ratios for sports\/race driving, but with the knowledge and experience garnered from years of manufacturing, power capacity also increased immensely, furthering OS' reputation for producing extremely durable components.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs time passed and technology progressed, the need for a better limited-slip differential presented itself and once again OS set out on a mission to \"build a better mousetrap\". The clutch-type LSD's popular at the time served their purpose, but were commonly known to require regular maintenance\/service, performed inconsistently, were noisy, and not comfortable for normal street driving. Just as he had done with engine, clutch, and gear development, Mr. Okazaki came up with a completely new design with the purpose of eliminating all the shortfalls of parts available at the time. The end result of his efforts resulted in the Lock Timing Control System and Spline-Through Side Gear designs, which were patented and implemented into the all-new Superlock LSD, a revolution in limited-slip technology that could offer all the benefits of a limited-slip differential without the shortfalls inherent with other products offered from competitors.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFrom Mr. Okazaki's humble beginnings tinkering with motorcycle parts at home, OS Giken has evolved and grown over the years, building and cementing a reputation as one of the best racing drivetrain parts manufacturers in the world. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines. Production and design capabilities for engine and drivetrain components are OS Giken's specialty, but the company has the ability to design and build just about anything mechanical. As the design, construction, and usage of the automobile evolves, OS Giken looks forward to the challenges presented to find room for improvement! \u003c\/span\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":7870631575607,"sku":"osgPR152-HC","price":2820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/f4c7a715-11cc-4b64-9463-1620c50861c7-420_66a98291-991e-4021-b3dc-0703cc1a52b9.jpg?v=1525564126"},{"product_id":"os-giken-super-lock-lsd-for-pdk-997-turbo","title":"OS Giken Super Lock LSD for PDK (997.2 Turbo)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2009 - 2012 Porsche 911 Turbo (PDK)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cspan\u003eThe OS Super Lock LSD is the culmination of over four years of extensive research and development that led to a revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total). Combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner, making it suitable for both street and racing performance. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Design\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eMiniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePatented pressure ring design allows for smooth, progressive locking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Construction\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are chemically heat treated for maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAll components are constructed from a high-grade steel alloy Gears are raw-forged for maximum strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eLSD case is machined from a single billet piece to ensure uniformity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eSuperior Overall Performance\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability; basically, the vehicle will feel like driving on an open diff in slow turns \/ street driving, but can still transmit maximum power to the drive wheels under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eOperation is ultra quiet, and the progressive locking allows for smooth, predictable locking. Especially when replacing an open diff, equipping OS LSD will completely improve the driving experience while maintaining everyday drivability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eDue to the precision manufacturing, high-grade materials, and unique design, a break-in period nor rebuild is required for OS Giken LSD’s. OS LSD is purposefully over-engineered to offer the best performing, most durable clutch-type LSD available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAside from the performance advantage and stock-like feel at slow speeds, vehicles equipped with OS LSD are more stable in all road\/weather conditions, allowing for a safer driving experience\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout OS Giken\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/OSGikenLogo_150px_-01_medium.png?v=1473799315\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStarting in the early 1960's, Osamu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe TC16-MA2 twin cam head for Datsun L-series was designed in 1974 and successfully campaigned on the international rally and circuit racing scene; on the streets of Japan it ruled as king and was virtually untouchable. Producing 230+hp naturally aspirated (quite a feat for 4-cylinder engines in Japan during that time), a very limited number of units were produced to supply various Datsun race teams. The 6-cylinder version (TC24-B1) followed shortly thereafter, with a specific target of outperforming the fastest production car of the time, the Porsche 930 turbo. Featuring twin cams, pent-roof combustion chambers, and 24-valves., power output was in the 320+hp range (about double the power output of the OEM L28 motor).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith the amount of power the OS built motors were generating, no clutches available at the time were able to sufficiently transfer power down the driveline, so Mr. Okazaki took the initiative to analyze what was available and redesign something to improve performance and durability. The end result was the Racing Line of OS Giken clutches: smaller disk diameter, lighter assembly weight, increased durability\/power capacity with decreased pedal pressure. OS clutches have since become a major part of the product lineup, with new improvements being developed and tested continually.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe next weak link for high performance applications proved to be the transmission, so once again OS set out to improve on components already available in the market. OS gear kits are designed to optimize the gear ratios for sports\/race driving, but with the knowledge and experience garnered from years of manufacturing, power capacity also increased immensely, furthering OS' reputation for producing extremely durable components.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs time passed and technology progressed, the need for a better limited-slip differential presented itself and once again OS set out on a mission to \"build a better mousetrap\". The clutch-type LSD's popular at the time served their purpose, but were commonly known to require regular maintenance\/service, performed inconsistently, were noisy, and not comfortable for normal street driving. Just as he had done with engine, clutch, and gear development, Mr. Okazaki came up with a completely new design with the purpose of eliminating all the shortfalls of parts available at the time. The end result of his efforts resulted in the Lock Timing Control System and Spline-Through Side Gear designs, which were patented and implemented into the all-new Superlock LSD, a revolution in limited-slip technology that could offer all the benefits of a limited-slip differential without the shortfalls inherent with other products offered from competitors.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFrom Mr. Okazaki's humble beginnings tinkering with motorcycle parts at home, OS Giken has evolved and grown over the years, building and cementing a reputation as one of the best racing drivetrain parts manufacturers in the world. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines. Production and design capabilities for engine and drivetrain components are OS Giken's specialty, but the company has the ability to design and build just about anything mechanical. As the design, construction, and usage of the automobile evolves, OS Giken looks forward to the challenges presented to find room for improvement! \u003c\/span\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":8105231024183,"sku":"osgPR152-HC","price":2820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/f4c7a715-11cc-4b64-9463-1620c50861c7-420_c02e2848-8509-456d-8eb3-2a2d556725e8.jpg?v=1526784441"},{"product_id":"clutch-masters-fx-series-clutch-kit-987-2-boxster","title":"Clutch Masters FX Series Clutch Kit (987 Boxster)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2005 - 2008 Porsche Boxster S (3.2L and 3.4L, not DFI engines)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e2009 - 2012 Porsche Boxster (2.9L)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FX250 System uses the Power Plus I Pressure Plate and a hybrid combination of Clutch Masters New Formula Button on one side and a heavy-duty Steel Back Organic friction lining on the other. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style. The FX250 clutch system has a higher holding capacity than a traditional full faced Kevlar without compromising the street friendly characteristics Clutch Masters is known for.\u003c\/p\u003e\n\u003cp\u003eNote, the 250R, 350R, and FX500 kits all feature an unsprung clutch disc, meant for race use only in combination with a Single Mass Flywheel, also available from Clutchmasters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eKit Includes\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePressure Plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch Disc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThrow-out Bearing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePilot Bearing or Bushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAlignment Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFX100 - STREET - 70% Increased holding capacity\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX250 - STREET- 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX350 - STREET\/RACE - 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX400 - RACE\/STREET - 170% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX500 - RACE USE ONLY - 200% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAbout Clutch Masters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/CM.jpg?v=1472158582\" alt=\"\" width=\"235\" height=\"83\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eHigh Technology Makes the Difference\u003c\/div\u003e\n\u003cp\u003eHistorically, high performance clutches have been a compromise. While improving holding or clamping pressure, manufacturers nearly always increase pedal pressure to an uncomfortable point, especially for stop-and-go traffic.\u003c\/p\u003e\n\u003cp\u003eBesides drivability concerns, additional pedal pressure can adversely affect stock clutch linkage and cause premature thrust bearing wear, leading to missed shifts, damaged clutch components, and even engine destruction.\u003c\/p\u003e\n\u003cp\u003eToday, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technique, Clutch Masters has increased clamping power, often without changing pedal pressure.\u003c\/p\u003e\n\u003cp\u003eExcessively increased pedal pressure, as found in many of today's traditional high performance clutches, places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in most of today's sport compact automobiles. Placing undue stress on the thrust bearing typically causes the bearing to wear prematurely or fail altogether. This failure can lead to catastrophic internal engine damage.\u003c\/p\u003e\n\u003cp\u003eA clutch, simply put, is a friction device that disengages and engages the engine from the transmission to allow for transition from motionless to movement and for gear changes. For street applications a smooth transition of power is essential while still being able to transfer all the power of the engine to the transmission. As power output of engines increase and demands on clutches become greater - for example high performance street or racing cars - the holding and clamping capacity of a clutch also must increase. This is where Clutch Masters' innovative engineering comes into play.\u003c\/p\u003e\n\u003cdiv\u003eClamping Force vs. Pedal Pressure\u003c\/div\u003e\n\u003cp\u003eDesigning heavy duty and high performance clutches with a very high clamp load and incredible coefficient of friction is a fairly simple engineering task. To do so without increasing pedal pressure has not been so easy. Even the education process of changing opinions that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.\u003c\/p\u003e\n\u003cp\u003eClutch Masters, a premier manufacturer of fine quality clutches since 1976, has taken this experience and a clean sheet of paper to re-engineer their line of performance clutches to address these problems. The proof of this success is now available from Clutch Masters as a complete line of clutch systems for high performance street and racing use. It is the first major breakthrough in performance clutches in over four decades.\u003c\/p\u003e\n\u003cp\u003eFollowing are ways of increasing clamp load. The methods vary in sophistication and effectiveness:\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eHeat Treating\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe diaphragm, or spring, is heat treated to increase spring tension for 10-40% more clamping force. This typically makes the diaphragm more brittle and more subject to premature failure. Many high performance clutch manufacturers use this procedure. Clutch Masters has perfected a more precise method of heat-treating its diaphragms to maintain consistent clamping force without compromising structural integrity.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDouble Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe double diaphragm is a method of increasing clamping force by stacking two diaphragms on top of each other. This will typically achieve the desired clamping force but will also increase the pedal pressure to a very high rate. For FX 500 and Multiple Disc set-ups, Clutch Masters uses two separate heat treating processes - one for each diaphragm - to ensure perfect compatibility between the two diaphragms. Additionally, there is a special friction-reducing material between the diaphragms to provide optimum clamping force while maintaining an ultra smooth operation.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThicker Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eA thicker (than stock) diaphragm allows extra clamping force but is considered to be an on or off style clutch. Smooth engagement is severely compromised with the thick diaphragm due to the reduced elasticity of the thicker material. Clutch Masters does not use this technique.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHi-Leverage\u003csup\u003etm\u003c\/sup\u003e Pressure Plate\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eBy re-engineering the pressure plate leverage ring (moving it closer to the pivot point), Clutch Masters solves the clamping vs. pedal pressure problem in a unique way. By moving the pressure ring, Clutch Masters Hi-Leverage\u003csup\u003etm \u003c\/sup\u003ePressure Plates take mechanical advantage of the leverage principle. By moving the leverage ring closer to the pivot point, the pressure applied to the plate is increased significantly without unnecessarily increasing pedal pressure, as is typically the case in other clutches. This Hi-Leverage\u003csup\u003etm\u003c\/sup\u003efeature is unique to the high-performance clutch industry.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003e***By combining these various methods of increasing clamping pressure with their re-engineered discs, Clutch Masters has developed a unique way of substantially increasing clutch performance without any of the negative side affects usually found in the typical high performance clutch.****\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Difference:\u003c\/p\u003e\n\u003cp\u003eClutch Masters clutches are true High Performance Clutch Systems and are technologically superior to anything currently on the market.\u003c\/p\u003e\n\u003cp\u003eTo develop a clutch with all the desired performance characteristics for intended applications is the challenge of a high performance clutch company. The Clutch Masters clutch system is unique in the industry. We use Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technology (refer to the Pressure Plate section) in our pressure plates, which significantly increases clamping force with no unnecessary increase in pedal pressure. Discs are designed either with reduced Marcel or a solid hub design to take advantage of our Hi-Leverage\u003csup\u003etm\u003c\/sup\u003epressure plate. The combination of these cutting edge technologies creates the finest clutch system on the market.\u003c\/p\u003e\n\u003cp\u003eAdditionally, Clutch Masters, with over 35 years in the industry, has researched hundreds of friction materials and uses only the best materials available for each intended application. By combining the optimum clamping force with the finest friction materials - each with their own unique coefficient of friction - Clutch Masters has developed a line of clutches that provide ultimate performance in virtually any severe environment.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecific Purposes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll Clutch Masters clutches are specifically designed for varying stages of high performance and\/or racing uses. From the street performance enthusiast who requires more grab than a stock unit while retaining everyday drivability, to the racer who needs a clutch to survive under the grueling conditions of competition, Clutch Masters offers complete clutch systems.\u003c\/div\u003e\n\u003cp\u003eWhen the Class 30 Grey Iron material of a typical pressure plate is not suitable, Clutch Masters uses doubly strong Ductile Iron, which is the case with most CM clutches.\u003c\/p\u003e\n\u003cp\u003eThe friction material found on all OE discs and many high performance discs is simply riveted to the disc center section. Under severe use and\/or high RPM applications, the disc material can fragment and break apart, becoming dislodged from the disc center section. Once this occurs, the clutch has failed completely and is rendered inoperable. Clutch Masters has solved this common problem on their street and street\/strip discs by bonding a special steel backing plate (see disc technology and figure X) to the friction material. This unique feature provides significantly increased heat dissipation properties - heat is the #1 enemy of the clutch - and very high structural integrity to keep the disc intact under severe applications.\u003c\/p\u003e\n\u003cp\u003eRacing Only discs use solid center sections to give all the reliability and performance they need on the track. Warning: These solid hub discs are not meant for street applications as they transfer very high shock loads to the transmission, causing premature transmission failure, and will chatter upon starting from a stop.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Weakest Link\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eIn the battle of Man vs. Machine, whenever possible, engineers build into any given mechanical system a point of failure, or weak point, which is designed to wear or fail, therefore preventing damaging major components or even catastrophic failure of the entire system.\u003c\/div\u003e\n\u003cp\u003eIn the battle of Engine vs. Transmission, the clutch is designed to be that weak link. It is ultimately less expensive to replace a clutch than an engine or transmission. The challenge in building a high performance clutch is to build the unit for different intended heavy duty or severe applications which will hold the power; not break the transmission or internal engine components and retain an overall smooth operation of the entire system (whenever possible). This is the balancing act that Clutch Masters has perfected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clutch Masters","offers":[{"title":"FX250","offer_id":31962226131028,"sku":"clm20808-HD0F-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX250R","offer_id":31962226163796,"sku":"clm20808-HD0F-R","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX350","offer_id":31962226196564,"sku":"clm20808-HRFF-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX350R","offer_id":31962226229332,"sku":"clm20808-HDFF-R","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX400","offer_id":31962226262100,"sku":"clm20808-HDC6-D","price":1237.0,"currency_code":"USD","in_stock":true},{"title":"FX500","offer_id":31962226294868,"sku":"clm20808-HDB6-R","price":1237.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/e513a057-3641-4f11-998f-c3622da42d2a-420_f5c62c5b-0520-4b5d-aa46-a37570529bf2.jpg?v=1583443772"},{"product_id":"clutch-masters-fx-series-clutch-kit-987-2-cayman-boxster","title":"Clutch Masters FX Series Clutch Kit (987.2 Cayman \u0026 Boxster S)","description":"\u003cp\u003e\u003cstrong\u003eDesigned to fit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2009 - 2012 Porsche Cayman S \u0026amp; Boxster S (3.4L DFI Engines Only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eProduct Details:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FX250 System uses the Power Plus I Pressure Plate and a hybrid combination of Clutch Masters New Formula Button on one side and a heavy-duty Steel Back Organic friction lining on the other. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style. The FX250 clutch system has a higher holding capacity than a traditional full faced Kevlar without compromising the street friendly characteristics Clutch Masters is known for.\u003c\/p\u003e\n\u003cp\u003eNote, the 250R, 350R, and FX500 kits all feature an unsprung clutch disc, meant for race use only in combination with a Single Mass Flywheel, also available from Clutchmasters.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"line-height: 1.4;\"\u003eKit Includes\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePressure Plate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eClutch Disc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eThrow-out Bearing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003ePilot Bearing or Bushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAlignment Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFX100 - STREET - 70% Increased holding capacity\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX250 - STREET- 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX350 - STREET\/RACE - 110% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX400 - RACE\/STREET - 170% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFX500 - RACE USE ONLY - 200% Increased holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003eAbout Clutch Masters\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.4;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/files\/CM.jpg?v=1472158582\" alt=\"\" width=\"235\" height=\"83\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eHigh Technology Makes the Difference\u003c\/div\u003e\n\u003cp\u003eHistorically, high performance clutches have been a compromise. While improving holding or clamping pressure, manufacturers nearly always increase pedal pressure to an uncomfortable point, especially for stop-and-go traffic.\u003c\/p\u003e\n\u003cp\u003eBesides drivability concerns, additional pedal pressure can adversely affect stock clutch linkage and cause premature thrust bearing wear, leading to missed shifts, damaged clutch components, and even engine destruction.\u003c\/p\u003e\n\u003cp\u003eToday, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technique, Clutch Masters has increased clamping power, often without changing pedal pressure.\u003c\/p\u003e\n\u003cp\u003eExcessively increased pedal pressure, as found in many of today's traditional high performance clutches, places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in most of today's sport compact automobiles. Placing undue stress on the thrust bearing typically causes the bearing to wear prematurely or fail altogether. This failure can lead to catastrophic internal engine damage.\u003c\/p\u003e\n\u003cp\u003eA clutch, simply put, is a friction device that disengages and engages the engine from the transmission to allow for transition from motionless to movement and for gear changes. For street applications a smooth transition of power is essential while still being able to transfer all the power of the engine to the transmission. As power output of engines increase and demands on clutches become greater - for example high performance street or racing cars - the holding and clamping capacity of a clutch also must increase. This is where Clutch Masters' innovative engineering comes into play.\u003c\/p\u003e\n\u003cdiv\u003eClamping Force vs. Pedal Pressure\u003c\/div\u003e\n\u003cp\u003eDesigning heavy duty and high performance clutches with a very high clamp load and incredible coefficient of friction is a fairly simple engineering task. To do so without increasing pedal pressure has not been so easy. Even the education process of changing opinions that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.\u003c\/p\u003e\n\u003cp\u003eClutch Masters, a premier manufacturer of fine quality clutches since 1976, has taken this experience and a clean sheet of paper to re-engineer their line of performance clutches to address these problems. The proof of this success is now available from Clutch Masters as a complete line of clutch systems for high performance street and racing use. It is the first major breakthrough in performance clutches in over four decades.\u003c\/p\u003e\n\u003cp\u003eFollowing are ways of increasing clamp load. The methods vary in sophistication and effectiveness:\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eHeat Treating\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe diaphragm, or spring, is heat treated to increase spring tension for 10-40% more clamping force. This typically makes the diaphragm more brittle and more subject to premature failure. Many high performance clutch manufacturers use this procedure. Clutch Masters has perfected a more precise method of heat-treating its diaphragms to maintain consistent clamping force without compromising structural integrity.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDouble Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe double diaphragm is a method of increasing clamping force by stacking two diaphragms on top of each other. This will typically achieve the desired clamping force but will also increase the pedal pressure to a very high rate. For FX 500 and Multiple Disc set-ups, Clutch Masters uses two separate heat treating processes - one for each diaphragm - to ensure perfect compatibility between the two diaphragms. Additionally, there is a special friction-reducing material between the diaphragms to provide optimum clamping force while maintaining an ultra smooth operation.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThicker Diaphragm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eA thicker (than stock) diaphragm allows extra clamping force but is considered to be an on or off style clutch. Smooth engagement is severely compromised with the thick diaphragm due to the reduced elasticity of the thicker material. Clutch Masters does not use this technique.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eHi-Leverage\u003csup\u003etm\u003c\/sup\u003e Pressure Plate\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eBy re-engineering the pressure plate leverage ring (moving it closer to the pivot point), Clutch Masters solves the clamping vs. pedal pressure problem in a unique way. By moving the pressure ring, Clutch Masters Hi-Leverage\u003csup\u003etm \u003c\/sup\u003ePressure Plates take mechanical advantage of the leverage principle. By moving the leverage ring closer to the pivot point, the pressure applied to the plate is increased significantly without unnecessarily increasing pedal pressure, as is typically the case in other clutches. This Hi-Leverage\u003csup\u003etm\u003c\/sup\u003efeature is unique to the high-performance clutch industry.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003e***By combining these various methods of increasing clamping pressure with their re-engineered discs, Clutch Masters has developed a unique way of substantially increasing clutch performance without any of the negative side affects usually found in the typical high performance clutch.****\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Difference:\u003c\/p\u003e\n\u003cp\u003eClutch Masters clutches are true High Performance Clutch Systems and are technologically superior to anything currently on the market.\u003c\/p\u003e\n\u003cp\u003eTo develop a clutch with all the desired performance characteristics for intended applications is the challenge of a high performance clutch company. The Clutch Masters clutch system is unique in the industry. We use Hi-Leverage\u003csup\u003etm\u003c\/sup\u003e technology (refer to the Pressure Plate section) in our pressure plates, which significantly increases clamping force with no unnecessary increase in pedal pressure. Discs are designed either with reduced Marcel or a solid hub design to take advantage of our Hi-Leverage\u003csup\u003etm\u003c\/sup\u003epressure plate. The combination of these cutting edge technologies creates the finest clutch system on the market.\u003c\/p\u003e\n\u003cp\u003eAdditionally, Clutch Masters, with over 35 years in the industry, has researched hundreds of friction materials and uses only the best materials available for each intended application. By combining the optimum clamping force with the finest friction materials - each with their own unique coefficient of friction - Clutch Masters has developed a line of clutches that provide ultimate performance in virtually any severe environment.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecific Purposes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eAll Clutch Masters clutches are specifically designed for varying stages of high performance and\/or racing uses. From the street performance enthusiast who requires more grab than a stock unit while retaining everyday drivability, to the racer who needs a clutch to survive under the grueling conditions of competition, Clutch Masters offers complete clutch systems.\u003c\/div\u003e\n\u003cp\u003eWhen the Class 30 Grey Iron material of a typical pressure plate is not suitable, Clutch Masters uses doubly strong Ductile Iron, which is the case with most CM clutches.\u003c\/p\u003e\n\u003cp\u003eThe friction material found on all OE discs and many high performance discs is simply riveted to the disc center section. Under severe use and\/or high RPM applications, the disc material can fragment and break apart, becoming dislodged from the disc center section. Once this occurs, the clutch has failed completely and is rendered inoperable. Clutch Masters has solved this common problem on their street and street\/strip discs by bonding a special steel backing plate (see disc technology and figure X) to the friction material. This unique feature provides significantly increased heat dissipation properties - heat is the #1 enemy of the clutch - and very high structural integrity to keep the disc intact under severe applications.\u003c\/p\u003e\n\u003cp\u003eRacing Only discs use solid center sections to give all the reliability and performance they need on the track. Warning: These solid hub discs are not meant for street applications as they transfer very high shock loads to the transmission, causing premature transmission failure, and will chatter upon starting from a stop.\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Weakest Link\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eIn the battle of Man vs. Machine, whenever possible, engineers build into any given mechanical system a point of failure, or weak point, which is designed to wear or fail, therefore preventing damaging major components or even catastrophic failure of the entire system.\u003c\/div\u003e\n\u003cp\u003eIn the battle of Engine vs. Transmission, the clutch is designed to be that weak link. It is ultimately less expensive to replace a clutch than an engine or transmission. The challenge in building a high performance clutch is to build the unit for different intended heavy duty or severe applications which will hold the power; not break the transmission or internal engine components and retain an overall smooth operation of the entire system (whenever possible). This is the balancing act that Clutch Masters has perfected.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Clutch Masters","offers":[{"title":"FX250R","offer_id":31962258833492,"sku":"clm20971-HD0F-R","price":1391.0,"currency_code":"USD","in_stock":true},{"title":"FX350","offer_id":31962258866260,"sku":"clm20971-HDFF-D","price":1391.0,"currency_code":"USD","in_stock":true},{"title":"FX350R","offer_id":31962258899028,"sku":"clm20971-HDFF-R","price":1391.0,"currency_code":"USD","in_stock":true},{"title":"FX400","offer_id":31962258931796,"sku":"clm20971-HDC6-D","price":1391.0,"currency_code":"USD","in_stock":true},{"title":"FX500","offer_id":31962258964564,"sku":"clm20971-HDB6-R","price":1391.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1429\/9246\/products\/e513a057-3641-4f11-998f-c3622da42d2a-420_8d4dcbb1-4a9a-4155-a49d-e5c1c1e5b341.jpg?v=1583444589"}],"url":"https:\/\/flat6motorsports.com\/collections\/transmission\/model_987-2-boxster-s+model_987-1-boxster-s.oembed","provider":"Flat 6 Motorsports - Porsche Aftermarket Specialists ","version":"1.0","type":"link"}