Porsche 958 Cayenne Turbo / Turbo S XperTune Performance Software (2011-2014) Tunes & Software Meet the strictest of emissions

Meet the strictest of emissions standards while freeing up power with an HJS 300-cell catalyst downpipe

Simple DIY installation with no cutting or welding required

Daily-driveable sound and power from Fabspeed's Supercup Exhaust System

Designed with high flowing German imported 200-cell HJS HD catalyst for the ideal blend of performance and efficiency

993 RS Clubsport 1994-1998

Porsche 958 Cayenne Turbo / Turbo S XperTune Performance Software (2011-2014) Tunes & Software Meet the strictest of emissionsAchieve maximum power gains (over 99 whp & 140 ft lbs) and driveability without sacrificing reliability. Easily flash your Cayenne with a Fabspeed ECU Tune utilizing the included handheld device. 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