Description
KW height-adjustable springs for BMW M4 F82 / F83. These height-adjustable springs let you set the ride height while retaining the original shock absorbers. Threaded adjustment provides a personalised drop without replacing the entire damping system.
The stated technical adjustment range is 5–25 mm at the front and 5–25 mm at the rear. Choose the product reference that matches the vehicle version and suspension configuration. The Swiss approval document specific to the kit is included.
To comply with the Swiss approval document, lowering is limited to a maximum of −40 mm relative to the original ride height, subject to the conditions in the supplied document. The kit’s technical adjustment range may extend beyond this limit.
Technical specifications
| Brand |
KW |
| Series |
HAS |
| Vehicle application |
BMW M4 F82 / F83 |
| Product type |
Height-adjustable springs |
| Shock absorbers |
Original dampers retained on compatible applications |
| Electronic damping |
Original functions retained on compatible applications |
| Technical front adjustment range |
5–25 mm |
| Technical rear adjustment range |
5–25 mm |
| Ride-height adjustment |
Threaded adjustment |
| Maximum approved lowering in Switzerland |
−40 mm relative to the original ride height, subject to the conditions in the supplied document |
| Compatibility |
BMW M4 F82 Coupé (2014 → 2020) / BMW M4 F82 Competition / BMW M4 F83 Convertible (2014 → 2020) / BMW M4 F83 Competition |
To comply with the Swiss approval document, lowering is limited to a maximum of −40 mm relative to the original ride height, subject to the conditions in the supplied document. The kit’s technical adjustment range may extend beyond this limit.
Swiss approval
This KW suspension kit is supplied with a Swiss approval document specific to the product reference, allowing the modification to be entered on the vehicle registration document.
- Swiss approval: document included with the kit.
- Permitted lowering: up to a maximum of −40 mm relative to the original ride height, subject to the conditions in the approval document.
- Compatibility: the document must match the installed product reference and the vehicle concerned.
- Vehicle inspection: after installation, the vehicle must be presented to the cantonal vehicle authority to have the modification approved.
Important: some adjustment ranges technically allow lowering of more than 40 mm. This technical capability does not permit exceeding the −40 mm limit or disregarding the other conditions in the supplied document.
