The Bilstein B12 (Pro-Kit) suspension kit for 2005 Audi A6 Quattro Base is a complete front-and-rear set combining Bilstein B8 dampers with Eibach Pro-Kit springs to provide a modest fixed-height drop and improved handling balance. Progressive springs deliver precise response and reliable driving dynamics. Kits are tuned for each application to ensure even lowering between 24–40mm and predictable control.
Bilstein B12 2005 Audi A6 Quattro Base Front and Rear Complete Suspension Kit