Bilstein B12 (Pro-Kit) suspension kit for 2017–2020 Audi A4, combining Bilstein Performance dampers with Eibach Pro-Kit springs tuned for the application. The kit offers moderate lowering—typically 24–40 mm depending on fitment—while preserving ride dynamics. Dampers and springs are matched per-vehicle to improve handling, response and appearance with a fixed-height lowering solution.
Bilstein 17-20 Audi A4 B12 Pro-Kit