KW H.A.S. Audi A6 (4F) Avant; FWD + Quattro; all engines

If you're looking to give your 2006-2011 Audi A6 Quattro a sportier stance and improved handling, but want more flexibility than traditional lowering springs, the KW H.A.S. (Height Adjustable Spring) kit is a solid option. This system lets you dial in the exact ride height you want, even after installation, giving your Avant a more dynamic look and feel. It's designed to work seamlessly with your car's factory dampers, whether they're standard or electronic adaptive systems, so all your vehicle's driver assistance features and comfort settings will continue to function as intended.

KW builds these kits using high-strength chrome-silicon steel springs, carefully rate-matched to your specific OE suspension dampers and wheel loads. This ensures a sporty yet harmonious driving experience without compromising the dynamics of your performance-oriented vehicle. The kit includes application-specific bump stops with dust protection to keep road grime from wearing out your factory shocks. Unlike fixed lowering springs, the KW H.A.S. system offers continuous, millimeter-precise adjustment within a tested range, allowing you to fine-tune the look and handling of your A6.

The development process for these springs involves extensive testing, including time on the Nurburgring Nordschleife and at KW's own 7-post driving dynamics test center, ensuring they meet rigorous standards. This kit is a great way to achieve a custom look and feel while maintaining the sophisticated electronic suspension systems found in many Audi A6 models.