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

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


Why We Choose HJS Catalytic Converters: 

HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.    If you'd like to learn more, watch our video about HJS catalytic converters.

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 katalysoren / 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. There is NOTHING Bigger or better than the HJS catalytic converter that Fabspeed Motorsport has supplied. Guaranteed 92% flow of a straight pipe with 100% no Check Engine lights no ECU tune required. Do get suckered in to any other brand of cheap aftermarket catalytic converters. 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 its 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 World's Very Best! This 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% maintaned. 

  • No Check Engine Light guaranteed- therefore no tune required. 

  • Emissions-compliant in 49 states  with No CEL lights. Not carb certified therefore cant be installed in California. 

  • 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

  • Fabspeed Motorsport was the Worlds very 1st company to design, engineer, Dyno develop HJS performance systems for the GT2RS.

  • Fabspeed over 25 years of excellence. Innovation not imitation. 

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.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.