Porsche 957 Turbo / Turbo S Primary Cat Bypass Pipes
Replaces the heavy and restrictive catalytic converters with a lightweight free-flowing "straight-through" design for maximum power and sound.
Fits all Porsche 957 Cayenne Turbo / Turbo S vehicles (2008-2010)
Adds wheel horsepower and torque for noticably improved throttle response
Constructed from high-quality 14-16 gauge C.N.C. mandrel-bent T304L stainless steel for optimum flow and maximum durability
Direct replacement for the factory highly restrictive catalytic converters to allow for maximum exhaust flow by removing the primary catalytic converters.
Optional 02 spacers available to help prevent triggering the Check Engine Light
All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
This is a racing downpipe/ catbypass pipe/ straight pipe intended for track and race cars that no longer go through emissions testing. This part is sold for off-road and/or competition use only. Racing downpipes/ catbypass pipe/ straight pipes will give you Check Engine lights on OBD2 cars. We suggest pairing this downpipe with racing software to prevent fault codes and check-engine lights as needed. Racing downpipes/ catbypass pipe/ straight pipes are prohibited for installation and usage in any street or road car used on public highways and roadways and installation and usage is in violation of local, state, CARB, and EPA federal laws. Check with your local, state and federals laws in your country. All installation risk and use risk is borne by the end-user installer of these parts.