Dinan Adjustable Coilover Suspension System - BMW G80 M3 / G82 M4

The Dinan Adjustable Coilover System for the BMW G80 M3 and G82 M4 takes a platform-specific engineering approach. The G8X platform is known for its tendency toward oversteer — stiffening the rear springs would exacerbate that. Instead, Dinan runs the front springs 15% stiffer to cut body roll, while making the rear springs 10% softer and converting them from progressive to dual-rate. The softer, more compliant rear increases rear grip and composure at the limit, giving you a more neutral, predictable car rather than a sharper but looser one.

The system supports up to 1-1/8" of drop in front and 2-1/4" in the rear, with Dinan recommending 3/4" (M4) to 7/8" (M3) front and 3/4" rear for best ride quality. You can also raise above stock height — up to 1/2" front and 1-1/4" rear. Factory electronic shocks are retained throughout. Threaded collars allow easy ride height adjustment, and suspension packers dial in bump-stop clearance.

Dinan G80 M3 / G82 M4 Adjustable Coilover System Features:

+ Retains factory electronic shocks — Dinan replaces springs only
+ Front springs 15% stiffer — reduces body roll
+ Rear springs 10% softer, converted to dual-rate — improves rear grip and compliance
+ Up to 1-1/8" lower front, 2-1/4" lower rear (recommended: 3/4"-7/8" front, 3/4" rear)
+ Can also run above stock: up to 1/2" front, 1-1/4" rear above stock height
+ Threaded collars for precise front and rear ride height adjustment
+ Progressive bump stops and suspension packers included
+ Stock upper spring mounts and spring isolators retained for quiet operation
+ Components machined from 6061-T6 aluminum, black anodized