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The Bilstein B12 Pro-Kit suspension kit for 1999 Audi A4 Base is a complete front-and-rear package combining Bilstein B8 Performance Plus dampers with Eibach Pro‑Kit springs to provide a fixed, moderate lowering. Tuned to each application for balanced ride and handling, it lowers about 24–40mm depending on fitment and uses progressive springs to deliver precise response and predictable control.
Bilstein B12 1999 Audi A4 Base Front and Rear Suspension Kit
