The Bilstein B12 (Pro-Kit) suspension kit for 2005 Audi A6 Quattro Base is a complete front-and-rear package pairing Bilstein B8 dampers with Eibach Pro-Kit springs to provide modest fixed-height lowering and sharper handling. The springs’ progressive design offers precise response and robust driving dynamics. Kits are application-tuned to ensure even lowering between 24–40mm and dependable, predictable control.
Bilstein B12 2005 Audi A6 Quattro Base Front and Rear Complete Suspension Kit