Agency Power SS Exhaust Muffler (Cayman / Boxster / GT4 981)

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Designed to Fit:

  • 2013 - 2016 Porsche Boxster / Boxster S
  • 2014 - 2016 Porsche Cayman / Cayman S
  • 2016+ Porsche Cayman GT4


Product Details

Agency Power has become well known for their high quality exhaust systems. The Porsche 981 Boxster was released in the summer of 2012 with a total redesign from the previous 987 chassis design. The direct fuel injection Porsche which is available in either the 2.7L or 3.4L engine, lacks the sports car grunt. To meet regulations and sound restrictions, the factory exhaust does rob alittle power and performance which can easily be uncorked. The new Agency Power exhaust system for the Porsche 981 is a complete header back kit. It features secondary cat bypass pipes and a dual muffler with a large dual tip. With an all stainless steel construction featuring exquisite TIG welding and polished piping, the exhaust system including mounting bracket is a direct replacement for the OEM unit.

As tested on our Mustang all wheel drive dyno, the muffler in comparison to stock added a peak of 7whp and 11ft/lbs of torque over stock. Because of the sensitivity of the traction control, the car must be tested in AWD mode which typically yields lower numbers then a RWD test only. However the most impressive gains were between 2500 and 4300 rpm’s which are typical driving conditions to get you from 0-60 much quicker.

The exhaust has a more aggressive tone then stock but is still very comfortable for daily use. It is designed to fit the 2013 and up Porsche 981 Boxster and Cayman. It will fit the Non-S, S, and GT4 versions. No cutting or welding required. Optional headers sold separately.



About Agency Power

Agency Power Industries LLC was developed out of the need to provide quality, functional, and fashionable racing products. Starting from sway bar endlinks for the Subaru WRX back in 2003, Agency Power now has and in-depth number of parts for cars ranging from Porsche, BMW, Ferrari, Subaru, Mitsubishi, Nissan and many more. Based out of Gilbert, Arizona, Agency Power has established itself as one the core aftermarket companies for niche tuner products. Agency Power is constantly developing new functional and race proven products. With dealers worldwide, the AP brand is recognized and trusted. Beyond the USA, Agency Power can be found in regions such as Singapore, Canada, Australia, South Africa, Russia, United Kingdom, and other parts of the EU.

Innovative products such as multi adjustable control arms, valvetronic exhaust systems, and carbon fiber intakes kits, give Agency Power an edge to truly make a difference on your performance vehicle.  Agency Power manufacturers its products only after in-depth product testing, racing, and quality checks are completed. Products like our full titanium Porsche exhausts, Ford Focus ST intercooler, and FRS/BRZ control arms are at the front of the competition. AP parts have been featured in magazines, videos, and customer competition events worldwide.