ST Coilover Kit 09-14 Audi A4/A4 Quattro (B8)

Starting with the composite spring perch, made from wear-resistant, friction-optimized polyamide with a stainless steel insert, ST Suspensions builds these X Coilovers for long-lasting, corrosion-free height adjustment. This is a key detail because it prevents oxidation between the strut body and the perch, ensuring you can still dial in your ride height years down the road. These coilovers are designed for a range of Audi vehicles, including models like the A4, S4, A5, and S5 from the B8 generation, offering a sporty yet comfortable ride for everyday driving.

The ST X Coilover system is built by hand at KW's facility in Germany, with each damper tested on a shock dyno to ensure it meets the specified forces. The galvanized steel housing offers improved resistance to corrosion, and an elastomer bump stop with an integrated dust protection system keeps dirt and water away from the hardened chrome piston rod and seals. This attention to detail in construction means you get a well-built suspension that can handle the demands of daily driving while providing a noticeable improvement in handling and appearance. The dampers and spring rates are tuned by ST's vehicle dynamics engineers in Germany to perfectly match each specific vehicle application, giving you a balanced mix of sporty feel and road comfort.

With seamless ride height adjustment, you can easily dial in your preferred look and stance. This kit is designed to be a direct fit for compatible Audi models, offering a significant upgrade to your vehicle's suspension performance and aesthetics. You'll find that the precise adjustment capabilities allow you to fine-tune your tire and wheel fitments for that perfect look.