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Ksport CBM030-AR Asphalt Rally Spec AR Coilover Kit Damping Monotube - 36-Way

(1999-2005 BMW 328i; 2001-2005 BMW M3; 1999-2005 BMW 325i; 1999-2005 BMW 330i; 1999-2005 BMW 330Ci; 1999-2005 BMW 325Ci; 1999-2005 BMW 323i + 2 more models)

Manufacturer

Part Number

CBM030-AR
Sale Price

$1,615.00

Estimated ship date Saturday, November 21

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ksport CBM030-AR Rally AR Spec Coilover System is an competition-grade suspension kit engineered specifically for asphalt rally racing. Featuring an extended piston stroke, reinforced heavy-duty internals, and rally-tuned spring rates, this coilover system is built to withstand the rigors of tarmac stage driving where standard street coilovers fall short.

Key Features:

  • 36-Way Damping Adjustment: Simultaneous compression and rebound adjustment across 36 distinct settings lets you precisely dial in handling balance and ride compliance for any stage or road condition.
  • Monotube High-Pressure Design: Oil and gas are separated within the cylinder, providing superior heat dissipation, finer damping control, and reduced risk of aeration and cavitation compared to twin-tube designs.
  • Large-Diameter Pistons: Increased oil capacity improves cooling efficiency during sustained high-demand driving.
  • 6061-T6 Billet Aluminum Construction: Mounts and key structural components are machined from 6061 billet aluminum for a lightweight, durable, and corrosion-resistant build.
  • Zinc-Electroplated Steel Shock Body: The steel shock body is electroplated with zinc to protect against rust and environmental exposure.
  • Pillow Ball Top Mounts (Select Applications): Available front and rear on many fitments, pillow ball top mounts preserve OEM suspension geometry, enhance steering feel, and provide direct driver response. Many also include integrated camber adjustment, eliminating the need for a separate camber kit.
  • Adjustable Lower Mount: Most applications feature an adjustable lower mount for ride height tuning without sacrificing suspension travel — unlike designs that compromise stroke with height changes.
  • Application-Matched Valving: Each kit's valving is calibrated to the specific spring rates installed, ensuring consistent ride quality and long-term reliability.
  • Dust Boot with Integrated Bump Stop: Protects the damper seal while the integrated bump stop design resists deterioration over time.

Height Adjustment Note: On many (but not all) applications, the Rally AR Spec system supports ride heights at or near OEM level. Depending on the specific fitment, lowering up to 3 inches from OEM height is achievable. Competitors should verify ride height compliance with applicable sanctioning body rules prior to competition.

The Ksport CBM030-AR Rally AR coilover kit is built to order — a testament to the application-specific engineering that goes into every set. It is an ideal choice for tarmac rally competitors and serious performance enthusiasts who demand durability, adjustability, and consistent damping performance under pressure.

Products specifications

Fits

1999-2005 BMW 328i; 2001-2005 BMW M3; 1999-2005 BMW 325i; 1999-2005 BMW 330i; 1999-2005 BMW 330Ci; 1999-2005 BMW 325Ci; 1999-2005 BMW 323i; 1999-2005 BMW 323Ci; 1999-2005 BMW 328Ci

Spring Rate (F)

9.8/549kg/lbs

Spring Rate (R)

12.5/700kg/lbs

Upper Mount (F)

P/U

Upper Mount (R)

ATM

Subject to CARB? Yes/No

No

Ksport Product Sub-Category

Asphalt Rally Spec AR Coilover Kit

Ksport Product Category

Coilover Kits

Spring Rate Rear kg/mm

12.5

Gas Charged

Yes

Lower Mount Type

Adjustable

Top Mount Type - Rear

Aluminum Mount no camber adjustment

Upper Mount Type

Pillowball Mount with camber adjustment

Spring Rate Front kg/mm

9.8

Dust Shield

No

Adjustable Height

yes

Top Mount Type - Front

Pillowball Mount with camber adjustment

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