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The Bilstein B4 rear twin-tube shock for BMW 528i/530i/550i models (2011–2015) is an OE-style replacement designed to restore original ride characteristics. Engineered to Bilstein quality standards, this damper supports precise construction and handling balance, helping to recover factory comfort and safety levels when installed as part of a matched replacement for the vehicle's rear suspension.
Bilstein B4 OE Replacement 11-15 BMW 528i/530i/550i Rear Twintube Shock Absorber
