You take performance seriously - and the AST 2-WAY Motorsport Suspension is built for drivers like you. Designed for true track enthusiasts, it delivers race-level precision and control. This monotube coilover system is 2-way adjustable for rebound, compression, and ride height, featuring external reservoirs for maximum consistency under extreme conditions. It includes camber-adjustable front top mounts, solid rear mounts, and adjustable-rate springs. Fully rebuildable and made in the Netherlands, it’s built to last. Fine-tune your setup with independent rebound and compression adjustments to reduce body roll, sharpen responsiveness, and enhance traction - all while maintaining the perfect balance between performance and comfort.

Features and Benefits

• These dampers can adjust in rebound (return to extension) and compression adjustment (moves inwards) when the vehicle encounters changing circumstances on the road or track. Including external reservoirs.

Fitment: 2021+ BMW M3/M4 (G8X / G80 / G81 / G82 / G83). Manufacturer: AST. Part #: RIV-B2112SD.