AST 2015+ Mazda MX-5 ND 5100 Series Coilovers (ACS-M1207S)

The AST 2015+ Mazda MX-5 ND 5100 Series Coilovers is a coilover kit from AST Suspension. Part ACS-M1207S.

Looking for the perfect everyday road balance? The 1-Way Street Non-Inverted Suspension delivers comfort and control in one refined package. Experience a high-quality monotube coilover system, 1-way adjustable for rebound and ride height. The front coilover design ensures precise handling, while the OEM-style rear setup maintains daily comfort. Built with fixed rear spring rates, OEM-compatible top mounts, and rebuildable dampers, this system offers lasting performance. Engineered and made in the Netherlands, the 1-Way STREET suspension maximizes grip and stability, giving your car the perfect balance between comfort and control on every drive.

Features and benefits

Monotube dampers offer a large piston to control the adjustability of rebound damping. Non inverted. These dampers can adjust in rebound (return to extension). Front dampers utilize a coilover design, the rear is a divorced setup like OEM.

Details

• Brand: AST Suspension
• Series: AST 5100
• Part number: ACS-M1207S
• Manufacturer description: AST 2015+ Mazda MX-5 ND 5100 Series Coilovers
• Kit includes (partial list from the manufacturer data): Springs

Fitment

• Vehicle: Mazda Miata MX-5 (ND)
• Years and models on file: 2020 Mazda MX-5 Miata 100th Anniversary Special Edition; 2016-2022 Mazda MX-5 Miata Club; 2016-2022 Mazda MX-5 Miata Grand Touring; 2020 Mazda MX-5 Miata RF 100th Anniversary Special Edition; 2017-2022 Mazda MX-5 Miata RF Club; 2017-2022 Mazda MX-5 Miata RF Grand Touring; 2016-2022 Mazda MX-5 Miata Sport
• Suspension packages vary within a model line (electronic dampers, engine, body style and drive type). Compare the application above with your car before ordering. Not sure? Ask us and we will check it against your VIN.

Before you order

Coilover kits are built for a specific chassis, drivetrain (RWD / AWD) and model range. Compare the manufacturer description above with your car. Cars with factory electronic dampers (for example EDC, PASM or adaptive M suspension) may need a cancellation kit, which is not included unless listed. An alignment is needed after installation. Questions? Ask us.

About AST Suspension

AST (Advanced Suspension Technology) is a Dutch suspension brand. It develops monotube coilover systems and lowering springs for road and track cars, from 1-way street setups to 3-way motorsport dampers, and its coilovers are engineered and made in the Netherlands.

Shipping & returns

• Orders are processed within 1–3 business days; standard delivery is 3–7 business days within the United States.
• Special order: this item is ordered from the manufacturer after you place your order. It is not shipped from stock and can take several weeks. We email you the expected ship date after you order.
• We currently ship within the U.S. only. See our Shipping Policy.
• 30-day returns on unused parts in original packaging — see our Return Policy.

Installation at Team ANBD

Team ANBD is a performance shop in Andover, New Jersey. An alignment is recommended after any ride-height change, and we can align or corner-balance the car, and prep track cars. Book an appointment or ask us about installation and fitment before you order.