ST XTA-Plus 3 Adjustable Coilovers BMW E46 M3 Coupe/Convertible (Incl. CSL)

The ST XTA-Plus 3 coilover kit starts with a composite spring perch made from a wear-resistant, friction-optimized polyamide. This material prevents oxidation, while an embedded stainless-steel insert ensures maximum strength. This advanced design is built by hand by experts at KW in Germany, with each damper tested on a shock dyno before boxing to ensure it's making the proper forces.

This kit offers extensive adjustability for both road and track use. You get 24 clicks of adjustment for high-speed and low-speed compression damping, plus 18 clicks for rebound. This allows you to fine-tune your suspension to match your driving style or track conditions, whether you're running a roll cage, spherical bushings, or altered wheel loads. The galvanized steel housing is sealed multiple times for longevity in all weather, and the elastomer bump stops with integrated dust protection keep dirt and water away from the piston rod and seals.

Ride height is adjusted using a seamless thread on the galvanized strut housing, allowing for easy changes even after installation. The kit also includes aluminum unibal top mounts, which improve steering response and feedback, and allow for camber adjustment. This is a comprehensive suspension upgrade designed for the discerning driver.