The KSport Asphalt Rally AR Coilover Kit is engineered for the abuse of tarmac rally stages and hard-driven back roads — exactly the conditions that break softer street coilovers on the 2014-2019 BMW M4. Inverted monotube shocks, extended stroke, heavy-duty internals, and large shock bodies mean more oil volume, better heat dissipation, and the kind of durability that survives a weekend of stage driving.
For BMW M4 owners chasing points on tarmac or just wanting a coilover that doesn”t fade after a spirited drive, the Asphalt Rally AR delivers the consistency real competition demands. Full ride-height adjustment and fine damping control give you the range to build a setup around your tires, your tarmac, and your driving style.
Features
Specifications
| Part Number | CBM403-AR |
| Damping Adjustment | 36-Way |
| Height Adjustable | Yes |
| Spring Rate (Front) | 16.0 kg/mm (896 lbs/in) |
| Spring Rate (Rear) | 22.0 kg/mm (1232 lbs/in) |
| Spring Type | Linear |
| Top Mounts – Front | Pillowball Mount with camber adjustment |
| Top Mounts – Rear | Aluminum Mount no camber adjustment |
| Notes | True Rear Coilover |
Vehicle Fitment
Important Fitment Note
Convertible Only


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