Bilstein B3 Rear Coil Spring (38-163531) - Opel Astra H R6 Engineered specifically for the BMW

Engineered specifically for the BMW M3 RENNEN

Engineered specifically for the Porsche 911 RSR (160 161)

and handling precision where standard shocks fall short

Compensation of lateral forces occurring at the MacPherson strut on the front axle through curved form

Bilstein B3 Rear Coil Spring (38-163531) - Opel Astra H R6 Engineered specifically for the BMWIf you're looking for quality, look no further. By choosing BILSTEIN springs, you're backing an uncontested champion: a successful motor sports fitter and a leading original equipment manufacturer of automotive springs. The benefits of BILSTEIN B3 shock absorbers are: Innovative technical designs, such as Pigtail ends, Minibloc forms and central force design High quality chrome vanadium or chrome silicone steel for an extremely high level of break