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  • Free-flowing straight pipes replace the bulky & restrictive factory catalytic converters; designed specifically for maximum flow during racing or competition
  • Fabspeed's Sport Catbypass Pipes for the Porsche 997.2 GT2RS compared to the restrictive OEM catalyst
  • Fabspeed Motorsport utilizes the highest quality materials available such as 14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel and 74mm Helical Technology valves
  • While the hardware made significant gains alone, we found our Cat Bypass Pipe's full power potential was realized when combined with our proprietary ECU tune. As tested on our 2019 GT2 RS, our Cat Bypass Pipes with ECU Tune adds an insane 113 WHP at 6400 RPM and 125 FT/LBS of torque at 3250 RPM Blast off!
  • Fabspeed Motorsport utilizes the highest quality materials available such as 14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel and 74mm Helical Technology valves

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Porsche 991.2 GT2 RS Cat Bypass Pipes (2018+)


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New Product Line: Porsche 991.2 GT2 RS | Fabspeed Motorsport (04:13)
NEW PRODUCT LINE: We are extremely proud to announce the release of our Porsche 991.2 GT2 RS Product Suite! The 991.2 GT2 RS is marvel of engineering that is close to perfection from factory, so we're thrilled to offer SIX PRODUCTS that push the boundaries even further. Be one of the first to order or learn more at the link below! How do you guys think we did? ----------------------- Feel free to visit fabspeed.com, call or stop by with any questions, concerns or comments. ----------------------- Fabspeed Motorsport elevates the exotic car experience through personalized performance; offering more product options and configurations than any other exotic car tuner, allowing us to custom tailor a sound and performance solution that meets your exact needs and compliments your lifestyle. For over 20 years, Fabspeed has been engineering and manufacturing the world's finest stainless steel high performance exhaust systems and components, air intake products, ECU tuning, and more, specifically-tailored for high-end sports cars and exotics. From Porsche to McLaren, our expertise is unmatched and it shows in everything that we do. Our dyno-proven performance products provide an exhilarating driving experience and are backed by a Limited Lifetime Warranty. Fabspeed strives to be a force of innovation within the industry; dedicated to maximum performance, excellent service, and true care and concern for the development of products and services for exotic car enthusiasts.

Product Description

Replace the restrictive OEM ceramic 700 cell catalytic converters with 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 for enhanced flow and utilized a 74mm 2.92” Ferrari 488 pista style exhaust valve for much more exhaust flow and power potential than the small stock exhaust valve.

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. Not CARB certified and not to installed or used on any street cars.                                           


  • Fits all Porsche 991.2 GT2RS vehicles (2018+)
  • Constructed from high-quality 14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel
  • Check Engine Light will appear without ECU tune
  • Cat Bypass Pipes with ECU Tune adds an insane 113 WHP at 6400 RPM and 125 FT/LBS of torque at 3250 RPM
  • Modular replacement for the OEM catalytic converters
  • OEM Tier 1 quality valves from Helical
  • Not CARB certified (for off-road and track use only!!)
  • Simple DIY installation; no cutting or welding required
  • Two clamps on each side of the vehicle need to be removed to upgrade to Fabspeed catbypass pipe
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

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.

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