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Porsche 911 Agency Power Exhaust Sytem with Stainless Mufflers - AP-997TT-170

    Porsche 911 Agency Power Exhaust Sytem with Stainless Mufflers - AP-997TT-170
  • Fits: 2006-2008 Porsche 997 Turbo
  • Polished Stainless Steel

    Having the perfect sounding exhaust system that helps gain power is not the easiest task at hand. Turbocharged cars do not need any backpressure and ideally perform best with no restriction off of the turbo exhaust outlet. However, this would cause your car to be incredibly loud and not comfortable for daily use. Agency Power has developed this exhaust system to give Porsche 997 Turbo owners a race tone exhaust without the dreaded drone in the 2200-2800 rpm range. The muffler system is designed to keep noise level down inside the cabin but roar at full throttle. The exhaust features high flow 200 cell catalytic converters.

    The cats work with the factory O2 primary and secondary sensors to not throw a check engine light. The all 304 stainless steel is robotically tig welded and then mirror polished for a final product that only belongs on a exotic car like the Porsche. The exhaust works with the factory tips or other aftermarket ones.With the design of the Agency Power exhaust system for the 997 Turbo, it not only improves sound, it adds power and saves weight off the rear end. The factory system is very bulky and weighs almost 60lbs. The new Agency Power system cuts that by 50% to reduce weight on your already heavy rear engine car.

    Because of the reduced restriction in the high flow 200 cell cats compared to the stock 400 cell, the turbos are able to relieve exhaust gas much quicker. Agency Power uses larger 76mm piping to handle the increased horsepower. The 1 piece rear muffler design also aids in gaining horsepower by reducing back pressure with a more free flowing internal construction. As tested on our Mustang AWD Dyno, the exhaust gained 21 awhp and 32ft/lbs of torque.This exhaust system has been tested on several different cars for just over a year. One of the best tests we put this system through was on the 2009 Gumball 3000 Rally. A 700HP 997TT Coupe and a 630HP 997TT Cab ran from LA to Miami running the Agency Power exhaust systems with great sound, no issues, and much praise from the owners.

    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 indepth number of parts for cars ranging from Porsche, BMW, Ferrari, Subaru, Mitsubishi, Nissan to 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 like the EVO rear control arms, STI fuel rails, RX8 pulley kit, and 996TT boost hoses, give Agency Power an edge to truly make a difference to your performance vehicle. Agency Power manufacturers its products only after indepth product testing, racing, and quality checks are completed. Products like our full titanium muffler catback exhausts, GT35R turbo kits, and adjustable sway bars keep AP at the front of the competition. AP parts have been featured in magazines such as Modified, DSport, Import Tuner, Total 911, Bimmer, Super Street, and more.
Was: $3,748.99
Sale: $2,999.99



Fits: 2006-2008 Porsche 997 Turbo


Professional installation is recommended.


  • 851284
  • 851284
  • Agency Power
  • New

Shipping Information

  • Item Requires Shipping
  • $100.00