The Bilstein B8 Performance Plus series is a high-performance monotube gas-pressure shock absorber designed specifically to be paired with lowering springs. This front left strut assembly provides improved handling and stability for All-Wheel Drive (xi) BMW E46 models without sacrificing ride comfort. Components included in this assembly: 1x Monotube Strut (Part No: 22-242617), 1x Top Nut, 1x Dust Cover/Boot. Key features: Instantaneous reaction to road conditions, increased safety and sport potential, durable mono-tube inverted technology.