The Bilstein B12 (Pro‑Kit) suspension kit for 2006 BMW 330i is a complete front-and-rear package combining Bilstein B8 dampers with Eibach Pro‑Kit springs tuned to the vehicle. With moderate lowering generally in the 24–40mm band depending on application, the kit is designed to sharpen handling, provide predictable control and improve the car's stance while remaining suitable for daily driving.
Bilstein B12 2006 BMW 330i Base Front and Rear Suspension Kit