The H&R Sport Spring kit for 2005–2011 Audi A6/A6 Quattro (4F) applications lowers ride height to tighten fender clearance and lower the center of gravity for improved handling. Its progressive spring rate reduces body roll without sacrificing ride comfort and can modestly improve aerodynamic efficiency. Constructed from 54SiCr6 spring steel, shot-peened and block-set in Germany, these lightweight, resilient springs are a popular single-part upgrade for enhanced road manners.
H&R 05-11 Audi A6/A6 Quattro (2WD/4WD) 4F Sport Spring