Agency Power Secondary Muffler Bypass Pipes (991.1 Carrera S)


Designed to Fit:

  • 2012 - 2016 Porsche 911 Carrera S

Product Details

These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15. 6lbs. The Agency Power Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.

According to our dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.

This part fits all 12-15 Porsche 991 Carrera S models.


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.