
Specifications
- Brand
- AST
- Part #
- ACC-B2115SD
- UPC
- astACC-B2115SD

AST BMW G80-G81 M3 G82-G83 M4 AWD / G81 M3 X-drive 2021- AST 5100 Competition Series Coilovers
$5712.00
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Worn-out suspension causes poor handling and ride comfort. AST 5100 Competition Series coilovers are a direct fix for your BMW M3/M4, offering track-ready performance and adjustable ride height.
Key Features
- 1-way adjustable rebound and ride height — optimize your car's handling for track or street.
- Monotube dampers — larger piston offers better rebound control and more responsive valving.
- Front and rear dampers are coilover design — prioritizes adjustability and consistent handling.
- Includes camber-adjustable front top mounts and solid rear top mounts — allows for more front-end grip adjustment.
- Springs and top mounts are included — a complete package for your suspension upgrade.
- Rebuildable dampers — allows for service and repair at a certified AST center.
Fits these vehicles
- BMW M3 2022-2023
- BMW M4 2021-2023
Product Details
Worn-out suspension causes poor handling and ride comfort. The AST 5100 Competition Series coilovers are a direct fix for your 2021-2023 BMW M4 and 2022-2023 M3. These are built for drivers who want track performance but also need a balanced ride for daily driving. You can fine-tune grip by adjusting rebound and ride height.
These coilovers use a monotube design. That means a larger piston inside controls the rebound damping. This design prevents air from mixing with the oil, so the damping is more responsive. The dampers are also rebuildable at a certified AST service center if any issues come up.
Specifications
- Brand
- AST
- Manufacturer Part #
- ACC-B2115SD
- UPC
- astACC-B2115SD
Frequently Asked Questions
You Might Also Like
Similar products from the same category

AST 2015-2020 Audi RS3 Sedan-Sportback 2.5TFSi (8VS-8VA) Suspension Lowering Springs

AST 76-84 Mercedes-Benz 200 240D/240TD/280E/280TE/280CE/300D/300TD (W123) Lowering Springs 40mm/40mm

AST BMW 2018+ M340 (G20) Lowering Springs 30mm drop

AST Suspension 02-07 Toyota Corolla (E12) 2.0D4-D Lowering Springs 35mm/35mm
AST BMW G80-G81 M3 G82-G83 M4 AWD / G81 M3 X-drive 2021- AST 5100 Competition Series Coilovers
