Bilstein B3 Rear Coil Spring (36-313259) - BMW E90 B1 the B12 kit delivers a

the B12 kit delivers a balanced suspension solution straight out of the box

Perfect OE Fit: Direct bolt-on replacement using original mounting points—no modifications needed

The Bilstein B6 4600 is the ideal suspension upgrade for drivers who want to enhance handling and control without changing their vehicle's ride height

Bilstein B6 is the go-to solution for those who want more confidence on the road—whether it’s during fast cornering

Bilstein B3 Rear Coil Spring (36-313259) - BMW E90 B1 the B12 kit delivers aIf 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