Raceseng Slammer - Shift Knob


Designed to Fit:

  • 2006 - 2016 Porsche Cayman
  • 2006 - 2016 Porsche Cayman S
  • 2005 - 2016 Porsche Boxster
  • 2005 - 2016 Porsche Boxster S
  • 2008 Porsche Boxster RS 60
  • 2016+ Porsche Cayman GT4
  • 2017+ Porsche Boxster / Boxster S
  • 2017+ Porsche Cayman / Cayman S

NOTE - Engraved option will include machined gate pattern engraved. Picture may not render with engraving upon selection.

Product Details:

635 grams. That's the number you need to remember. The Slammer is exactly what the name entails. The shape and mass of this shift knob makes for one of the most enjoyable shifting experiences.

The shape of the Slammer is not the traditional ball shaped shift knob for a reason. The ergonomics behind an overhand grip shift position require a full form shape at the bottom and a flatter top shape to fill your palm. The combination of these elements drove the shape of the Slammer.

WEIGHT: 1.4 lbs. | 635 grams

HEIGHT: 2 5/16" | 58.9 mm

DIAMETER: 2 1/16" | 52.4 mm


With the weight in all the right places, Slammer redefines your shifting experience through the look and feel of how you shift into gear. You will experience smoother and faster shifts!


Well, to put it as simply as we can, the heavier the knob, the easier it will make shifting feel. Its not magic, its physics. Weight in motion directly relates to how an object will react to an opposing force. In this case, the opposing force is the gate pattern and counter springs that are connected to your shift arm that tell you the shift pattern of your car. The difference felt when shifting into the next gear requires far less effort due to the additional momentum created by the increased mass.


CNC TURNED - The Slammer is cnc machined from 303 stainless steel. Machining stainless steel is not an easy task. It requires close supervision of Raceseng's cnc turning centers and tooling to ensure a flawless part and surface finish.

ENGRAVED - The Slammer is then engraved with Raceseng's signature shift gate pattern on our vertical milling machine. You have the choice, get the shift gate pattern engraved for the slick graphic design or not engraved for a smooth and clean design.

HANDWORK - The final touch is done completely by hand. Raceseng brush finishes each shift knob, one at a time by hand on a high speed electric motor.



About Raceseng

The birth of Raceseng dates back to 2005 when a father and son were inspired to merge their combined design, engineering and manufacturing skills with their passion for racing. With a legacy of racing history dating back to 1957, the driving goal was to create a company that embodied their passion and knowledge to completely design, develop and manufacture a line of high performance automotive products. Ever since then, we have set out on a journey being well aware that its going to take many years of hard work to build out our vision!