AST 5100 Coilovers – BMW G8X M2, M3 & M4
AST 5100 Coilovers – BMW G8X M2, M3 & M4
AST Suspension coilover technical overview showing damper construction and design features

AST 5100 Coilovers – BMW G8X M2, M3 & M4

By AST Suspension
From £2,772.00
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Product Description

AST 5100 coilovers for the BMW G8X M2, M3 and M4 combine adjustable ride height with single-adjustable rebound damping. Street, Street Performance and Club Racing configurations provide a choice of top mounts and rear suspension layout. All versions use inverted front struts, so the meaningful choices are the configuration and the correct rear-wheel-drive or xDrive application.

AST coilover technical overview

Damper design & adjustment: The high-pressure monotube dampers are rebuildable and supplied with springs. Rebound adjustment controls the resistance as the damper extends after compression, while spring-platform adjustment sets ride height. Changing a rebound setting does not change the spring rate, and adding camber-adjustable mounts changes the available alignment adjustment rather than the number of damping controls.

Configuration differences

Street: Retains the original front and rear top mounts, with the rear springs mounted separately from the dampers.

Street Performance: Adds camber-adjustable front top mounts while retaining the original rear mounts and separate rear spring arrangement. Both Street and Street Performance therefore preserve the original-style rear spring and damper layout.

Club Racing: Includes camber-adjustable front top mounts and solid rear top mounts. It also uses true rear coilovers, with each rear spring carried on its damper rather than sitting separately in the suspension. This makes Club Racing materially different from Street Performance, rather than simply a version with another set of mounts.

Drop links are included with all configurations offered here.

Installation & setup: For vehicles fitted with factory Electronic Damper Control, Clubsport Garage recommends coding out EDC when fitting non-electronic coilovers, where supported for the vehicle. A compatible KW EDC cancellation kit is a separately available hardware alternative. The new dampers remain manually adjusted. Ride height and alignment should be established during installation, with wheel and tyre clearance checked throughout the suspension's working travel.

Further information below.

Key Features
  • Single-adjustable rebound damping.
  • High-pressure monotube dampers with rebuildable construction.
  • Adjustable spring platforms for ride-height setting.
  • Front camber adjustment on configurations supplied with adjustable top mounts.

Vehicle Compatibility
  • Rear-wheel drive: BMW G80 M3, G82 M4 and G87 M2.
  • xDrive: BMW G80 M3, G81 M3 Touring, G82 M4 and G83 M4 Convertible.
  • Select the vehicle's actual drivetrain. An xDrive car still requires the xDrive kit when a rear-drive driving mode is selected.
  • Factory electronic damping requires the appropriate coding or cancellation solution with non-electronic replacement dampers.

What's Included
  • AST 5100 front and rear dampers.
  • Springs for the selected configuration.
  • Street Performance: camber-adjustable front top mounts.
  • Club Racing: camber-adjustable front and solid rear top mounts.
  • Drop links.

FAQs

Does changing the damper setting change the spring rate or ride height?

No. Rebound adjustment changes damping resistance. Ride height is set through the spring platforms, and the spring rate remains a property of the installed spring.

Can the dampers be serviced?

Yes. The AST 5100 uses rebuildable dampers. Servicing should follow AST's requirements for the particular application and use.

Does the car need an alignment after fitting?

The alignment should be checked and set at the chosen ride height. Wheel and tyre clearance also needs checking with the car's actual wheel specification.

Shipping & Delivery

Dispatch Times

Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.

UK & International Shipping

We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.

Import Duties & International Orders

International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.

Damaged Shipments

If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.

Returns

Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.

Full details are available in our Shipping Policy and Returns & Refund Policy.

Warranty & Disclaimer

Warranty

Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.

Fitment & Installation

Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.

Motorsport Use Disclaimer

Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.

Product Images & Descriptions

Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.

Full details are available in our Terms of Service and related policy pages.