The Bilstein B8 Performance Plus series is a high-performance aftermarket strut insert specifically designed to be paired with lowering springs. This 36mm Monotube gas pressure shock absorber provides increased damping power to enhance the handling characteristics of your vehicle while maintaining ride comfort. Ideal for sport-tuned suspensions. Package includes: 1x Front Strut Insert (Art: 34-181546), 1x Mounting Nut, 1x Dust Cover Sleeve. Technical specifications: System: Monotube, Fitting Position: Front Axle, Design: Strut Insert, Parameter: VE3-8154.