The Bilstein B4 Series 19-171616 Gas Pressure Shock Absorber is engineered to restore your vehicle's original ride quality and handling performance. Designed as a direct OE replacement for the Audi A4 (B8) platform, this twin-tube shock absorber utilizes Bilstein’s world-famous gas pressure technology to provide consistent damping and superior stability under all road conditions. Item includes: 1x Shock Absorber (Front Axle, Left or Right). Note: It is recommended to replace shock absorbers in pairs for optimal performance. Fits models with standard suspension (Chassis: for vehicles without electronic suspension control).