AST 5100 Competition Series Coilover Kit for BMW M3 F80 & M4 F82 (2015–2018)

Description

The AST 5100 Clubracing Coilover Set (ACC-B2103S/5D) is a premium height- and damping-adjustable suspension upgrade engineered to dramatically enhance the handling and ride quality of BMW M3 (F80) and M4 (F82/F83) platforms. Whether you’re carving canyon turns, cruising daily roads, or pushing limits on the track, these monotube coilovers deliver superior body control, reduced dive/squat, and customizable damping feedback through a 12-position rebound adjustment. Fully equipped with camber-adjustable front top mounts and solid rear mounts, this kit gives you the tools to dial in grip, ride height, and chassis balance for both road and competition use.

Fitment Notes

• Designed for BMW M3 (F80; 2015–2018) and BMW M4 (F82/F83; 2015–2020) chassis.

• Includes front and rear coilovers with top mount hardware — replaces factory dampers.

• Not compatible with electronic suspension systems (e.g., EDC) — requires mechanical damper conversion.

• Camber-adjustable front top mounts included for enhanced front geometry tuning.

• Solid (non-adjustable) rear top mounts included.

Included

• Four (4) AST 5100 monotube coilovers (front and rear)

• Front camber-adjustable top mounts

• Rear solid top mounts

• Matched performance springs

• Rebound adjustment knobs (12-position)

• Ride height adjustment hardware

• Installation hardware and basic guidance

Product Specs

• Suspension type: Monotube coilover system with independent height and rebound adjustments.

• Rebound adjustment: 12 positions to fine-tune response and body control.

• Spring configuration: Matched fronts and rears for balanced dynamics.

• Top Mounts: Camber-adjustable front / solid rear included.

• Design: Coilover-style damping for improved grip and chassis control.

• Construction: High-pressure monotube design — maximizes piston control and resists aeration under load.

Product Features

• Height and rebound tuning: Adjust ride height and rebound damping independently to tailor handling for street, canyon, or track.

• Monotube design: Enhanced heat handling and consistent damping performance under spirited driving compared with twin-tube shocks.

• Camber-adjustable front top mounts: Allows precise front geometry setup for improved tire contact and cornering grip.

• Balanced performance: Ideal blend of daily comfort and performance capability for spirited driving and occasional track events.

• Rebuildable components: Coilovers can be serviced and re-valved through AST service centers for long-term performance.

• Direct replacement: Bolt-on design uses OEM mounting points with hardware included.

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