Porsche 996 Carrera XperTune Performance Software (1999-2004) Suspension Racing Cat Bypass Pipes are

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

Sport catalytic Converter X-Pipe

Achieve maximum power from the Audi R8 5

Mini Maxflo mufflers are radius stress relieved

Super EASY installation and easy removal incase you want to go quiet and or back and forth

Porsche 996 Carrera XperTune Performance Software (1999-2004) Suspension Racing Cat Bypass Pipes areAchieve maximum power from the Porsche 996 Carrera 3. 4L Carrera S 3. 6L engine without sacrificing driveability or reliability by optimizing the engine's performance. Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECU's that traditionally required bench flashing. No longer do you need to remove your ECU and mail it in for a tune. The Handheld device interfaces with the OBD II port on your vehicle and your computer