The Bilstein B6 2006 BMW Z4 M Roadster Front Right 36mm Monotube Strut Assembly is an aftermarket performance strut designed to provide improved handling and stability for your BMW Z4 M Roadster. This strut features a 36mm monotube design, which offers superior damping control and improved ride quality. The strut is made from a high-quality steel and is corrosion-resistant for long-term durability. The strut is also adjustable, allowing you to fine-tune your suspension setup for the best possible performance. This strut is the perfect choice for those looking to upgrade their BMW Z4 M Roadster's suspension system.