Here at Nine Excellence we supply and fit Bilstein dampers to lots of Porsche when doing a refresh of Porsche suspension.
Porsche 997 C4 3.6L 07/2004>>
Porsche 997 C4S 3.8L 07/2004>>
without PASM; without electronic suspension control
Front lowering: 25-35 mm
Rear lowering: 15-35 mm
Bilstein B16 PSS9/10 Hieght & 9-Way Damping Adjustable Coilover Kit.The PSS9/10 Kit is a ride height adjustable coil-over system with 9 different damping force settings. This Coliover Suspension Kit has created an entirely new level of performance suspension. Based on the monotube inverted technology, the Bilstein B16 PSS9/10 meets the highest standards. This system features threaded body ride height adjustability, and also allows for adjustable damping in both the compression and rebound cycles. Once fitted to the car these damping settings are easily changed by turning the aluminium adjuster to fine tune for your driving style. The Bilstein B16 PSS9/10 suspension kit lowers from 10-60mm and is TUV approved.