The Bilstein B4 02-08 BMW 745/750 Front Right Twintube Strut Assembly is a high-performance strut assembly designed for the BMW 745/750 series. It features a gas-pressure twin-tube design, which offers superior damping ability and improved stability compared to conventional strut assemblies. The strut assembly also features a monotube design, which provides increased responsiveness and a more comfortable ride. The assembly is made of high-quality materials for superior durability and corrosion resistance. It also comes with a limited lifetime warranty.