KW H.A.S. Audi A4 S4 (8K/B8) Sedan FWD + Quattro; A5 S5

Starting with high-strength springs made from multi-coated chrome-silicon steel, this KW H.A.S. kit is built for a long life and tuned specifically for your vehicle's factory dampers. Unlike traditional lowering springs that offer a fixed drop, these H.A.S. (Height Adjustable Spring) systems let you precisely adjust the ride height on each corner, even after installation. This means you can dial in the perfect stance for your Audi A4, A5, S4, or S5, achieving a more dynamic look without sacrificing the car's inherent driving dynamics. KW's engineers develop vehicle-specific parameters and spring specifications, rigorously testing them on the Nurburgring Nordschleife and in their 7-post Driving Dynamic Test Center to ensure they pair perfectly with your factory adaptive or electronic suspension systems.

This kit is designed to work seamlessly with your car's original electronic suspension, maintaining the functionality of all driver assistance systems and comfort features. You'll get improved steering behavior and a more agile response from the standard dampers. The kit includes application-specific bump stops with dust protection systems to shield your factory suspension from road grime and debris, helping to prevent wear and tear. You get the continuous adjustable ride height similar to a coilover setup, within a tested range, all while ensuring a sporty and harmonious driving experience.

This kit is a solid option for owners looking to lower their Audi A4, S4 (8K/B8) Sedan FWD + Quattro, or A5, S5, A6, A7, and RS5 models. It offers a significant upgrade over fixed lowering springs by providing adjustability and maintaining compatibility with your vehicle's advanced factory systems. The kit comes with a limited lifetime warranty for peace of mind.