The Bilstein B4 16-19 BMW X1 Front Right Twintube Shock Absorber is a high-performance shock absorber designed to provide superior ride comfort and handling for BMW X1 vehicles from 2016 to 2019. It features a twin-tube design that offers superior damping and is specifically tuned for each application to ensure optimal performance. This shock absorber is built to last with a corrosion-resistant finish and durable components, and is backed by a limited lifetime warranty.