The Bilstein B6 performance strut is a mono-tube high-pressure gas pressure shock absorber designed for those who want improved handling and stability without lowering their vehicle. This strut is specifically engineered to be used with the original factory springs. It provides increased damping power for heavy-duty use or frequent spirited driving while maintaining comfort. This is a single unit (Front Left). Part attributes: Series: B6 Performance; Suspension Type: Monotube Strut; Position: Front Left. Components Included: 1x Strut Assembly (35-051398), 1x Mounting Nut.