The Bilstein B6 Performance series is the ideal choice for drivers who want improved handling and stability without lowering their vehicle's ride height. This 36mm Monotube Strut Assembly provides consistent, fade-free performance thanks to its high-pressure gas technology. Designed for BMW F30/F31/F32/F36 platforms, it significantly improves suspension damping for both daily driving and spirited use. This product is a single front strut (Left/Right universal for specific applications). This is a single unit; for a complete front axle replacement, please order two units. Part Number: 35-228387. Type: B6 Performance (High Pressure Gas). Design: Monotube Inverted Strut.