The Bilstein B6 range of shock absorbers are an excellent choice for owners wanting to improve the handling characteristics and ride on their 3 Series. Compared to the original shocks that were fitted from the factory, Bilstein’s design and the internal components are of much higher quality. This means that they provide much better shock absorption, and the damping rates are able to be more finely tuned by Bilstein’s engineers who develop these struts at the Nurburgring. The B6s are direct-replacement shock absorbers with increased longevity.