The Bilstein B6 2007 BMW X5 3.0si Rear Right 46mm Monotube Shock Absorber is a high-performance shock absorber designed to improve the handling and ride quality of your BMW X5. It features a 46mm monotube design that provides superior damping control, and is constructed from a durable steel body and finished with a corrosion-resistant zinc coating. The shock absorber is also designed to reduce body roll, improve stability, and reduce brake dive for a smoother, more comfortable ride.