The Bilstein B6 Performance monotube shock is an upgraded replacement damper intended for use with the vehicle's factory springs, offering application-specific valving to improve handling and safety in daily and extreme conditions. Its 46mm monotube design uses Bilstein gas-pressure technology for consistent damping and vehicle-specific ride tuning; each unit is tested to meet or exceed OE standards for the 2006 BMW 330i rear application.
Bilstein B6 2006 BMW 330i Base Rear 46mm Monotube Shock Absorber