KW Height Adjustable Spring (H.A.S.) kit for the 2021-2026 BMW M4 (G83) Cabrio AWD, including M4 Competition. Unlike fixed lowering springs, the H.A.S. system lets you adjust ride height at each corner with millimeter precision even after installation, for a more dynamic stance and sharper steering response. Chrome-silicon steel springs are tuned to the factory adaptive dampers and wheel loads so all electronic suspension and driver-assist features stay fully operational, and vehicle-specific bump stops with a dust-protection system are included.
| Brand | KW |
| Type | Height Adjustable Spring (H.A.S.) kit |
| Spring material | Chrome-silicon steel |
| Drivetrain | AWD (xDrive) |
| Electronic suspension | Retained |
| Warranty | Limited lifetime, unlimited mileage |
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | BMW | M4 | Base |
| 2022-2025 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
