The Bilstein B4 OE Replacement 04-06 BMW X3 3.0i L6 3.0L Front Right Twintube Strut Assembly is a high-performance replacement strut assembly designed to fit the 2004-2006 BMW X3 3.0i L6 3.0L. The strut assembly is made from a monotube design and features a gas-pressurized internal design that helps to reduce the risk of fade and provide a consistent dampening force. It also features a self-adjusting deflective disc valving that helps to provide a smoother ride and improved handling. The Bilstein B4 OE Replacement 04-06 BMW X3 3.0i L6 3.0L Front Right Twintube Strut Assembly is a direct replacement for the original equipment strut and is designed to provide superior performance and reliability.