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Presenting the only Porsche 991 Turbo and Turbo S Exhaust System with enough craftsmanship to bear the AWE Tuning name. Behind the finished product are hundreds of hours of prototyping, engineering, research, testing and daily usage evaluation; outputting an exhaust system that is equal parts sophisticated and aggressive.


Power, performance and sophistication:

  • Max Gains: + 20 hp / + 20 ft lb at the crank with OE tips or Quad Tips 
  • German-made 200 cell HJS HD metal-core catalysts 
  • No CEL. Guaranteed. 
  • 3.0" mandrel-bent tubing with H-Pipe crossover for optimal performance 
  • T-304 Stainless Steel Tubing 
  • Direct bolt-on 
  • Included gaskets & hardware 
  • Engineered, designed and manufactured in house at AWE Tuning



Producing an exhaust system that is both aggressive at full throttle yet civil enough for Bluetooth calls is no small endeavor. Using the AWE Tuning 200 Cell HJS HD High Flow Cat Sections, AWE Tuning sound engineers carefully studied the tones of the multiple prototype 991TT systems at various RPMs, and meticulously engineered a bespoke 991TT solution (as opposed to a repurposed 997.2TT system) to combat frequencies that are not appropriate for a supercar of this caliber – retaining and building upon only the perfect notes. All while producing an impressive 29+ horsepower at the crank along with the AWE Tuning No CEL Guarantee.

Using 3.0" diameter T304 Stainless Steel tubing and an H-Pipe design, the AWE Tuning muffler section routes exhaust gases through two proprietary and hand-crafted mufflers to create the AWE Tuning signature sound.

This system is available with the following tip configurations:

Quad Outlet Tips: Available in AWE Tuning Diamond Black, or Chrome Silver finish.

Retaining stock tips: Not ready for the tips? Not a problem. The AWE Tuning Porsche 991 Turbo and Turbo S Performance Exhaust System is compatible with factory tips, for those who want to keep the aesthetics under wraps. You can always add tips later by contacting us here.

Important notes

Please note that due to the use of high flow catalytic converters this exhaust is legal for racing use only.

More Information
Brand AWE
Exhaust Tip Size 90mm



WARNING: Consuming this product can expose you to chemicals which are known to the State of California to cause cancer, as well as chemicals which are known to the State of California to cause birth defects and/or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Lead Time
Up to 6-8 Weeks