The Bilstein 14-16 BMW 550i B4 OE Replacement Suspension Strut Assembly - Front Left is a high-performance replacement suspension strut designed to replace the original equipment on a 2014-2016 BMW 550i. It is constructed from high-quality materials and features a monotube design for improved damping and ride comfort. This strut assembly is designed to restore the vehicle's original factory ride height and handling characteristics. It also features a unique zinc-plated finish for corrosion resistance and durability.