Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)
Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)
Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)
Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)
Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)
Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)

Fabspeed Porsche 991.2 GT2 RS Valvetronic Sport Cats (2018+)

Regular price $4,995.95

Replace the restrictive OEM ceramic GT2RS 700 cell catalytic converters with ultra free flow HJS German Imported tri-metallic race quality 200 cell HD cores that flow 92% to 93% of  a straight pipe.  Fabspeed Motorsport USA is the Exclusive Importer for HJS Emissions technology Deutschland Germany for all of North and South America. We use the very best largest possible imported 200-cell HJS Sport Cats increase that immediately exhaust flow for better power and throttle response and improved superlative GT2RS dynamic sports car sound!

Simple direct replacement bolt on HJS catalytic converters for the ceramic GT2RS cats and integrate easily with the titanium OEM center muffler.  These are the very largest HJS HD German cores that will fit on this car. Guaranteed 92% flow of a straight pipe with no Check Engine lights no ECU tune required. Fabspeed also uses Helical U.K. imported 3.0" 74mm vacuum actuated exhaust valves. Helical LTD. Aerospace England supplies these ultra high temperature valves to Porsche, Ferrari, Mclaren, Aston Martin as OEM due to bulletproof reliability. If it's NOT engraved with Helical on top it will fail, rattle or melt internally. If its not a Helical exhaust valve it will not work. 

Porsche used a small 60mm 2.375” exhaust valve for the bypass to the exhaust tip on each exhaust bank. Fabspeed Motorsport went much larger 74mm 3.0" valve for enhanced flow and utilized a the same larger, Therefore higher exhaust flow, Helical UK silica carbide  that Ferrari uses on the 488/ 488 Pista, F12 and Lamborghini uses on the Huracan, Performante and SVJ Aventador and Mclaren Senna.  Therefore your GT2RS gets the Worlds Very Best ultra quality exhaust valve in a larger size style  for more exhaust flow and sports car sound. Fabspeed engineering was the 1st company to enhances PSE exhaust on the GT2RS.

The above Fabspeed Motorsport GT2RS high-flow catalytic converter system is the result of design, engineering and the very best globally sourced components, based on over 30 years of Motorsport design and quality.                                                              


  • Fits all Porsche 991.2 GT2 RS vehicles worldwide (2018+)
  • Quicker turbo spool and throttle response guaranteed 
  • HJS German imported 200 CPSI extra extra large Sport Catalytic Converters with ECU Tune adds an insane 75 WHP at 7200 RPM and 108 FT/LBS of torque at 3200 RPM
  • Direct replacement bolt-on XXL HJS German imported 200 cell HD European level 6 wash coat catalytic converters- genuine articles not counter-fit no black market. The HJS German catalytic converters chosen by Fabspeed are the largest and best possible choice direct from Deutschland.
  • Constructed from high-quality  14-16 gauge, C.N.C. mandrel bent T304 Stainless Steel
  • OEM Tier 1 quality valves from Helical. Porsche Sport Exhaust PSE is 100% maintained. 
  • Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
  • Simple super easy installation only 4 exhaust clamps to remove and replace to install replacement cats. So simple no instructions required.
  • Install for track events circuit events and remove easily for concours or trade in time. 
  • 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, never to be driven on public roads. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified (CARB) and not EPA certified. You are hereby informed and warned to check your local, state, and federal 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.