Replaces the heavy and restrictive catalytic converters with a lightweight free-flowing performance x-pipe for maximum power and sound
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 will most likely be triggered. This is not an indication of any actual issue with the engine, and does not prevent normal vehicle operation. Optional O2 Spacers are also available to help keep the CEL from being triggered.
Fits all Porsche 996 GT3 vehicles 1999-2005
Adds 12whp and 12ft/lbs of torque
Saves 25lbs from the rear of the car vs the factory catalytic converters
Designed for racing and maximum power applications
Improves throttle response and provides aggressive sports car sound
Used by many Rolex Grand Am Cup racing teams and PCA/POC/ DE enthusiasts
Recommended for track/off-road use only
Optional O2 Spacers available to minimize C.E.L occurrences
This is a racing downpipe/ catbypass pipe/ straight pipe intended for track and race cars that no longer go through emissions testing. This part is sold for off-road and/or competition use only. Racing downpipes/ catbypass pipe/ straight pipes will give you Check Engine lights on OBD2 cars. We suggest pairing this downpipe with racing software to prevent fault codes and check-engine lights as needed. Racing downpipes/ catbypass pipe/ straight pipes are prohibited for installation and usage in any street or road car used on public highways and roadways and installation and usage is in violation of local, state, CARB, and EPA federal laws. Check with your local, state and federals laws in your country. All installation risk and use risk is borne by the end-user installer of these parts.