The Eibach replacement rear coil spring for Audi A6 Quattro (2005–2011, C6) restores proper rear ride height and suspension composure for six-cylinder applications. Eibach forms selected spring steels on precision CNC machines, then applies heat treatment, shot peening and durable powder-coat corrosion protection to ensure long-term stability. Springs are set to block so the car keeps the intended ride height for thousands of miles.
Eibach 05-11 Audi A6 Quattro C6 6 Cyl. Single Rear Spring