Porsche 955 Cayenne Turbo / Turbo S XperTune Performance Software (2002-2007) Exhausts Thanks to the world-class performance

Thanks to the world-class performance of the EMITEC tri-metallic HJS catalytic converter cores

We will then ship your ECU and optional Handheld Tuner back to you for re-installation

You will be emailed a download link with detailed instructions after adding this to your cart and checking out

They use Cheap 100% guaranteed to fail exhaust valves

Adds 16+ whp and 15+ tq and significantly increases throttle response while saving 8 pounds

Porsche 955 Cayenne Turbo / Turbo S XperTune Performance Software (2002-2007) Exhausts Thanks to the world-class performanceAchieve maximum power from the Porsche Cayenne Twin Turbo 4. 5L V8 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 to