Product Details

These KSport Asphalt Rally AR coilovers fit the 2014-2019 BMW M4 RWD, True Rear Coilover. The KSport Asphalt Rally AR Coilover Kit is engineered for the abuse of tarmac rally stages and hard-driven back roads β€” 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

  • Rally AR Spec coilover kits are designed specifically for asphalt rally competition.
  • Inverted steel shock absorber for increased response and heat dissipation
  • Large 55mm shock bodies and increased shock fluid volume for better cooling
  • Heavy duty steel lower mounts for stronger protection under aggressive track driving
  • All metal pillowball for added strength and responsiveness
  • 36-way adjustable damping
  • Collars and upper mounts made from 6061 aluminum with T6 for increased hardness
  • Adjustable spring perch for height adjustment
  • Camber adjustment on many
  • Monotube high pressure design for better performance and heat dissipation
  • Electroplated body for added protection from corrosion
  • Dust boot to protect damper seal

Specifications

Part Number CBM402-AR
Damping Adjustment 36-Way
Height Adjustable Yes
Spring Rate (Front) 16.0 kg/mm (896 lbs/in)
Spring Rate (Rear) 18.6 kg/mm (1042 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

Important Fitment Note

excludes Convertible

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
2014BMWM4RWDTrue Rear Coilover
2015BMWM4RWDTrue Rear Coilover
2016BMWM4RWDTrue Rear Coilover
2017BMWM4RWDTrue Rear Coilover
2018BMWM4RWDTrue Rear Coilover
2019BMWM4RWDTrue Rear Coilover

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