The ST XTA coilover kit for the F80 BMW M3 and F82 M4 gives you height-adjustable suspension with 16-click adjustable rebound damping, a linear race-spring system, and aluminum unibal camber-adjustable top mounts at the front axle. Each kit is hand-built by KW in Fichtenberg, Germany on galvanized zinc-coated steel struts and dyno-tested to factory-preset damper settings before it ships. The friction-optimized polyamide composite spring perch with a stainless-steel insert resists corrosion while keeping ride-height adjustment smooth over the long term.
| Type | Coilover kit (ST XTA) |
| Adjustability | Ride height + rebound damping |
| Damping | 16-click adjustable rebound |
| Construction | Galvanized zinc-coated steel |
| Springs | Linear race-spring system |
| Top Mounts | Aluminum unibal, front camber-adjustable |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2018 | BMW | M3 | Base |
| 2015-2020 | BMW | M4 | Base |
| 2019-2020 | BMW | M4 | CS |
