Designed by a joint engineering staff from Germany and the USA, the S1 coilover is built for the enthusiast that is looking for an ideal balance of ride quality and performance. In the front the S1 coilover for the MK5/6 VW/Audi Group platform features a specially designed progressive spring rate matched to a twin tube low pressure gas damper mounted in a heavy gold zinc plated threaded coilover housing that provides not only great handling, but also exceptionalcorrosion resistance. The rear features a progressive coil spring and adjustable threaded perch system with a specially tuned sport damper that is matched to the lowering range of the coil/perch combination. *Depending on vehicle