FabSpeed Porsche 996 Carrera Cat Bypass X-Pipe (1999-2004)



Dramatically improve mid/high end power by replacing the catalytic converters with a free-flowing x-pipe while adding aggressive sports car sound and throttle response; recommended for track and off-road use only.                                     

NOTE: The Catbypass X-Pipe provides dramatic power increases in the mid to high end of the RPM range.  Street drivers may notice a small torque loss at low RPM's, which is why we recommend the Sportcat X-Pipe for street applications.  Please also bear in mind that this system does not include catalytic converters, so the Check Engine Light (CEL) will most likely be triggered. This is not an indication of any actual issue with the engine, and does not prevent normal vehicle operation. 


  • Fits all Porsche 996 Carrera vehicles 1998-2004

  • Improves horsepower and torque by 33 whp and 41 ft-lbs

  • Saves 25 lbs from the rear of the vehicle

  • Recomended for track and off-road use only

  • Designed for maximum power and throttle response

  • Adds an aggressive exhaust tone

  • Used by many Rolex Grand Am race teams as well as PCA/POC and HPDE drivers

  • Simple DIY bolt-on installation and removal for vehicles that are used both on and off the track

  • 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 is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are 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.