Bilstein B6 Shock Absorber Rear - BMW 2 Series F87 M2 | 3 Series F80 M3 | 4 Series F82 | F83 M4The BILSTEIN B6 is ideal gas pressure shock absorber for those who refuse to compromise between performance or comfort. Better vehicle dynamics in any situation. For shock absorbers heavy loads or trailering are a big challenge. Built to OE quality standards, the BILSTEIN B6 delivers increased performance when demands are high. Even without lowering you will get better vehicle dynamics for a comfortable street performance in town and on the highway.