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

Engineered specifically for the Porsche 911 RSR (160 161)

the B6 4600 provides greater stability

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

and handling precision where standard shocks fall short

Built for lifted trucks

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