The Bilstein B6 Performance series is the ideal gas-pressure shock absorber for those who refuse to compromise between performance and comfort. This 46mm Monotube shock absorber is designed to improve the handling and stability of your classic BMW while maintaining excellent ride quality. It offers increased power reserves and a long service life even under heavy loads or towing conditions. The package includes: 1x Rear Shock Absorber (Part No: 24-008037). Features: Monotube gas pressure technology, high traction and precise handling, constant performance under any load, and direct bolt-on installation with no spring change required.