KW A4 B9 Sedan 2WD 48.5mm H.A.S.

If you're looking to give your 2017-2020 Audi A4 a sportier stance and improved handling, KW's Height Adjustable Spring (H.A.S.) kit is a smart way to go. Unlike standard lowering springs that lock you into one height, this kit lets you dial in the exact ride height you want, even after installation. This means you can fine-tune the look and feel of your A4 for a truly personalized setup.

KW builds these kits using high-strength chrome-silicon steel springs, carefully rate-matched to your Audi's factory dampers. This ensures a harmonious blend of sporty handling and comfort, without compromising the performance characteristics of your original suspension. A notable benefit is that all your car's factory electronic suspension systems and driver assistance features will continue to work seamlessly with these springs. The kit also includes vehicle-specific bump stops and dust protection to help guard your factory shocks against road debris and wear.

With the KW H.A.S. kit, you get the continuous ride height adjustability similar to a full coilover system, but using your existing dampers. This approach offers a significant improvement in steering response and overall agility, making your A4 feel more dynamic on the road. KW engineers test these setups extensively to ensure they perform well and integrate properly with your specific vehicle.