Helical Technology High Performance Exhaust Valves for Custom Applications Brakes air-fuel ratios

air-fuel ratios

2 Cayenne Turbo / Turbo S Valvetronic Exhaust System provides the best of both worlds

absolutely no cutting or welding required

Easily flash your Cayenne with a Fabspeed ECU Tune utilizing the included handheld device

The perfect combination for maximum power without the worry of a check engine light

Helical Technology High Performance Exhaust Valves for Custom Applications Brakes air-fuel ratiosHelical Technology is the UK's foremost producer of high specification engine control systems supplied to many of the world's leading vehicle makers, manufacturing valves of the highest quality for some of the most technically advanced and difficult applications. Helical Valves are the standard for high performance OEM applications ranging from Ferrari and Porsche to Lamborghini, McLaren and more see the full list below. They offer a proven OEM