KW H.A.S. Height Adjustable Lowering Springs - BMW M4 G83 Cabrio AWD (2021-2027) Including M4 Competition
The G83 M4 Cabrio is the open-air M4, and the factory ride height does not do the convertible proportions any favors. The KW H.A.S. brings it down to a proper stance while working with the factory dampers and the AWD drivetrain without conflict.
This is a spring kit, not a coilover setup. The H.A.S. works with your OEM shock absorbers on the G83 Cabrio, covering both the standard M4 and M4 Competition in AWD configuration. The adjustable spring perch gives you control over the final ride height within the available lowering range. Install the springs, set your number, torque everything down. The factory suspension does the rest.
Key Features
- Height adjustable lowering springs — spring kit only, works with factory dampers and AWD system
- Adjustable spring perch — set exact ride height within the available lowering range
- Lowering range: 10-30mm from stock ride height
- TUV-certified — German engineering and quality validation
- Progressive spring rate — maintains ride comfort at normal street speeds
- Covers G83 Cabrio standard and M4 Competition in AWD configuration
Vehicle Fitment
Fits the following BMW vehicles with factory shock absorbers:
- BMW M4 Cabrio / G83 AWD (2021-2027): Standard and M4 Competition
Installation Notes
Works with OEM shock absorbers and AWD drivetrain — no damper replacement required. Alignment required after installation.
- Verify OEM dampers are in good condition before installation
- Set desired ride height at assembly using the adjustable spring perch before final torque
- Alignment required immediately after installation