AST 15-18 BMW M3 F80/M4 F82 LCI / 12-15 BMW M3 F80 Pre LCI 5100 Comp Series Coilovers

This AST Suspension 15-18 BMW M3 F80/M4 F82 LCI / 12-15 BMW M3 F80 Pre LCI 5100 Comp Series Coilovers is an application-specific damper or coilover system. Confirm the exact vehicle, drivetrain, axle configuration, damper series, adjustment functions, spring arrangement, top-mount requirements, and included components before ordering.

Key Features

• Monotube Inverted Front Struts: Larger piston diameter reduces unsprung weight for immediate response and sharper steering feedback.
• External Reservoir All Four Corners: Boosts oil volume nitrogen stability for fade-free performance during extended hot track sessions.
• 12-Click Rebound Adjustment: Top-mounted knobs on all dampers allow quick trackside tuning without tools.
• 10-Click High-Speed Low-Speed Compression: Reservoir adjustments provide chassis-specific control for bumps and high-speed corners.
• Height Adjustable: 30-60 mm drop front/rear via threaded body lower bracket maintains geometry.

Fitment

Specifications

What’s Included

One new AST Suspension product in the exact part number, dimensions, rate, adjustment specification, and quantity identified on this page. Springs, dampers, top mounts, reservoirs, adjusters, links, tools, lines, fittings, and hardware are included only when expressly stated for this exact configuration.

About AST Suspension

AST Suspension develops performance springs, dampers, coilovers, top mounts, and motorsport suspension components. Vehicle fitment, dimensions, rates, adjustment functions, and included components remain exact-part specific.

Related Parts

• Shop the complete AST Suspension collection
• Shop suspension components
• AST 12-15 BMW M4 F82 Pre LCI 5100 Comp Series Coilovers
• AST 2021+ BMW M3 G80 / M4 G82 XDrive 5100 Street Series Coilovers
• AST BMW G80-G81 M3 G82-G83 M4 AWD / G81 M3 X-drive 2021- AST 5100 Competition Series Coilovers

Frequently Asked Questions

How do I confirm this AST damper kit fits?
Match the exact vehicle, chassis, drivetrain, axle layout, damper series, spring arrangement, top mounts, reservoirs, and every application note.

Which damping adjustments are included?
Adjustment functions vary by AST series and exact part number. Confirm whether the kit controls rebound, compression, or both before ordering and setup.

Are springs and top mounts included?
Only components expressly listed for the exact part number are included. Springs, top mounts, reservoirs, drop links, and adjustment hardware vary by configuration.

What setup is required after installation?
Set ride height and corner balance where applicable, verify travel and clearance, torque all mounts, and complete a professional alignment before normal use.

Installation Instructions

1. Confirm the exact AST part number, complete application or dimensional specification, included components, and current instructions before disassembly.
2. Support the vehicle at approved points and record the original ride height, alignment, suspension orientation, and adjustment settings.
3. Install components in the specified position and sequence using correct spring-compression, torque, preload, ride-height, and damper setup procedures.
4. Verify full suspension and steering travel, tire and wheel clearance, brake-line routing, fastener torque, and damper operation.
5. Settle the suspension, measure final ride height, complete a professional alignment, and recheck the installation after the initial driving cycles.