ST Coilover Kit 04-10 BMW E60 Sedan

ST Suspensions is known for providing well-built suspension components that offer a noticeable improvement in handling without sacrificing too much comfort. This ST X Coilover kit for your 2006-2010 BMW 550i is a prime example, designed to give you that sporty feel you're looking for while still being comfortable enough for daily driving. It lets you dial in your car's stance precisely, so it looks as good as it performs.

What sets these coilovers apart is the attention to detail in their construction. The galvanized steel strut housings are built to resist corrosion, ensuring they hold up over time. You'll find an adjustable spring perch made from a durable, friction-optimized polyamide composite with a stainless steel insert. This design prevents oxidation between the strut and perch, meaning you can adjust your ride height smoothly for years to come. ST also incorporates an elastomer bump stop with an integrated dust protection system. This keeps dirt and water away from the hardened chrome piston rod and seals, protecting the internal damper components. The dampers themselves are built by KW in Germany, a well-known name in performance suspension, and are tested on a shock dyno to ensure they meet specifications before they're boxed up. This means you're getting a suspension system that's not only application-specific for your BMW but also built with precision and tested for performance.

This kit is designed to be a complete package for improving your BMW's handling and appearance. The height adjustability is straightforward thanks to the composite spring perch and the trapezoidal thread pitch, allowing you to easily set your preferred ride height. With a 5-year limited warranty and unlimited mileage, you can be confident in the durability and performance of this German-made suspension system.