Replace the restrictive OEM GT2RS ceramic 700 cell catalytic converters with Helical U.K. Valve-tRonic straight pipes for racing Competition only.
Fabspeed catbypass pipes straight pipes bolt-up to stock GT2 RS titanium center muffler for maximum aggressive sports car sound and turbo whistling due to NO catalytic converters. You will get a Check Engine Light.
Porsche used a 60mm 2.375” exhaust valve for the bypass to the exhaust tip on each exhaust bank. Fabspeed Motorsport went much larger 74mm 2.92" Helical Limited Aerospace United Kingdom exhaust valves for enhanced sports car sound and power versus small 60mm 2.375" stock valves. Helical U.K. exhaust valves are the same OEM bulletproof quality as used by Porsche on the GT3RS, Ferrari 488 pista, F12, Mclaren Senna, and Lamborghini supercars. Fabspeed engineers went with larger ultra heat resistant premium exhaust valves for much more exhaust flow and power potential than the small stock exhaust valve while not compromising reliability.
The above Fabspeed Motorsport GT2 RS Catbypass/straight pipe system is the World’s very best! This is the result of design, engineering and the very best imported components. Based on over 30+ years of Motorsport design and quality.
For RACING and COMPETITION usage exclusively.
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.