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The Bilstein B12 (Pro-Kit) suspension kit for the 2008 BMW Z4 Coupe 3.0si is a complete front-and-rear package pairing Bilstein B8 Performance Plus dampers with Eibach Pro-Kit springs. Tuned for the application, it provides moderate lowering of roughly 24–40mm and progressive spring characteristics that improve response, handling balance and predictable control while preserving daily comfort and safety margins.
Bilstein B12 2008 BMW Z4 Coupe 3.0si Front and Rear Suspension Kit
