ST Coilover Kit 98-04 Audi A6 Quattro (4B/C5) Sedan/Wagon / 02-05 VW Passat W8 Sedan/Wagon (4Motion)

If you're looking to give your 1998-2004 Audi A6 Quattro a more performance-oriented stance and feel, the ST X Coilover kit is a solid option. This system is designed to give you that sporty edge for hugging corners, but it doesn't sacrifice the comfortable ride you expect for daily driving. You get a wide range of height adjustability, so you can dial in the perfect look for your car, whether you're aiming for a subtle drop or something more aggressive.

What sets these coilovers apart is the attention to detail in their construction. The spring perches are made from a durable, friction-optimized polyamide composite with a stainless steel insert. This combination prevents corrosion between the strut and the perch, ensuring that you can adjust your ride height smoothly for years to come. The galvanized zinc-coated steel struts offer excellent protection against rust, and ST Suspensions adds a dust protection system to keep dirt and debris away from the hardened chrome piston rod and internal valve components. Inside, you'll find a multi-layered sealing package, a mono block guide system, and a low-friction piston band, all working together within a pressure-resistant damper housing. These dampers are engineered by KW, a well-known name in suspension, ensuring improved driving dynamics tailored specifically for your A6 Quattro.

This kit is built by hand by experts at KW in Germany, and each damper is tested on a shock dyno before it's boxed up. The composite spring perch and unique trapezoidal thread pitch make adjusting the ride height straightforward, allowing you to achieve your desired look. You'll also benefit from elastomer bump stops with integrated dust protection, which help limit dynamic loads while preserving ride quality and durability. This kit is application-specific, meaning it's tuned with appropriate spring rates and damping to perfectly match your vehicle.