The ST XTA coilover kit is a height- and rebound-adjustable suspension system for the 2018-2024 S550 Ford Mustang, fitting EcoBoost, GT, Mach 1, Bullitt, Shelby GT350/GT350R and GT500. It pairs linear race springs with 16-click adjustable rebound damping and aluminum unibal camber-adjustable top mounts that sharpen steering response and let you dial in front camber for aggressive wheel and tire fitment. Galvanized zinc-coated steel struts with a friction-optimized polyamide composite spring perch and stainless-steel insert resist corrosion for long-lasting ride height adjustability. Built by hand by KW in Fichtenberg, Germany and dyno-tested before shipping, each kit ships with a damper setup manual.
| Type | Coilover kit (ST XTA) |
| Adjustability | Ride height + rebound damping + front camber (top mounts) |
| Damping | 16-click adjustable rebound |
| Construction | Galvanized zinc-coated steel strut, monoblock guide system |
| Springs | Linear race springs |
| Top Mounts | Aluminum unibal, camber adjustable (front) |
| Warranty | 5-year limited, unlimited mileage |
| Made In | Germany |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | Ford | Mustang | Bullitt |
| 2018-2024 | Ford | Mustang | EcoBoost |
| 2018-2024 | Ford | Mustang | EcoBoost Premium |
| 2018-2024 | Ford | Mustang | GT |
| 2018-2024 | Ford | Mustang | GT Premium |
| 2021-2023 | Ford | Mustang | Mach 1 |
| 2018-2020 | Ford | Mustang | Shelby GT350 |
| 2018-2020 | Ford | Mustang | Shelby GT350R |
| 2020 | Ford | Mustang | Shelby GT500 |
