Bilstein 47-249622 B14 PSS Coilover Kit for 2016-2025 Mazda MX-5 Miata/Fiat 124

Vehicle Fitment

• 2016-2025 Mazda MX-5 Miata (Sport, Club, Grand Touring, RF Club, RF Grand Touring, RF 100th Anniversary - Soft Top and RF Retractable Fastback; 1.5L I4, 2.0L I4; RWD)
• 2017-2020 Fiat 124 Spider (Classica, Lusso, Urbana, Abarth, 100th Anniversary Special Edition; 1.4L Turbo I4; RWD)

Fitment Notes

• Fits both Soft Top (ND) and RF Retractable Fastback body styles of the MX-5 Miata.
• Front lowering range: 30-60mm (~1.2"-2.4") - up to 695 kg front axle load.
• Rear lowering range: 30-60mm (~1.2"-2.4") - up to 640 kg rear axle load.
• The MX-5 Miata ND and Fiat 124 Spider share the same platform and suspension architecture - this kit is confirmed for both.
• Does not fit previous-generation MX-5 Miata (NC, NB, NA) or the Mazda MX-5 Miata NE (2024+, if platform changed). Confirm ND generation at time of purchase.

Features

• Threaded coilover body with aluminum spring seat and lock nut enables precise on-car ride height adjustment up to 20mm without removing the suspension.
• Monotube gas-pressure damper design with application-specific progressive rate coil springs co-tuned for the ND Miata/124 Spider platform.
• Front spring rate: 343 lbs/in (progressive); Rear spring rate: 229 lbs/in (progressive) - tuned for the lightweight roadster's balance and handling dynamics.
• Zinc-coated threaded body with Triple-C-Technology provides long-term corrosion resistance.
• Tested and validated by Bilstein engineers under motorsport conditions at the Nurburgring.
• Direct bolt-on fitment - no cutting or modification required.
• Made in Germany. Backed by Bilstein's Limited 5-Year Warranty.

Specifications

• Series: Bilstein B14 PSS (Performance Suspension System)
• Damper Type: Monotube Gas-Pressure Coilover (front) / Monotube Shock (rear)
• Front Spring Rate: 343 lbs/in (Progressive)
• Rear Spring Rate: 229 lbs/in (Progressive)
• Front Lowering Range: 30-60mm (~1.2"-2.4") - up to 695 kg front axle load
• Rear Lowering Range: 30-60mm (~1.2"-2.4") - up to 640 kg rear axle load
• Threaded Body On-Car Adjustment Range: up to 20mm
• Body Finish: Zinc Plated (dampers) / Blue (springs)
• Compatible Drivetrains: RWD only
• Compatible Engines: 1.5L I4 (Miata), 2.0L I4 (Miata), 1.4L Turbo I4 (Fiat 124 Spider)

Included Components

• 2x Front B14 PSS Monotube Coilover Strut Assemblies
• 2x Rear B14 PSS Monotube Shock Absorbers
• 2x Front Progressive Rate Coil Springs (343 lbs/in)
• 2x Rear Progressive Rate Coil Springs (229 lbs/in)
• 1x All necessary hardware for installation

Product Description

The Bilstein 47-249622 is a B14 PSS coilover kit engineered for the 2016-2025 Mazda MX-5 Miata ND (Soft Top and RF) and the 2017-2020 Fiat 124 Spider - both platforms sharing the same suspension architecture. The kit's progressive front (343 lbs/in) and rear (229 lbs/in) spring rates are tuned specifically for the lightweight, rear-wheel drive roadster geometry, delivering a sharper, more connected driving experience while maintaining street usability. The threaded coilover body allows precise ride height adjustment from 30-60mm front and rear, with up to 20mm of on-car fine-tuning without removing the suspension.

Dampers feature Bilstein's monotube gas-pressure design with application-specific valving developed and validated at the Nurburgring. The zinc-coated threaded body uses Triple-C-Technology for long-term corrosion resistance. This kit is compatible with all ND MX-5 Miata trim levels and body styles (Sport, Club, Grand Touring, RF variants) and all Fiat 124 Spider trims including the Abarth. Made in Germany and backed by Bilstein's Limited 5-Year Warranty.