The Bilstein B4 2013 BMW X1 xDrive28i Front Right Suspension Strut Assembly is a high-performance suspension upgrade designed for the 2013 BMW X1 xDrive28i. It is designed to provide superior handling and stability while also improving ride comfort and reducing body roll. The strut assembly is constructed from high-quality materials and features a monotube design for maximum performance. The strut assembly also includes a dust boot and bump stop for added protection.