Dinan High Performance Adjustable Coil-Over Suspension - 2021-2026 BMW M3/M4 G80/G82

OVERVIEW

Race-proven performance, refined for the street. The Dinan Adjustable Coil-Over Suspension unlocks the full dynamic potential of your G8x M3/M4 with sharper turn-in, reduced body roll, and greater stability under braking and acceleration — without sacrificing the ride comfort Dinan is known for. The system retains the factory electronic dampers while upgrading to a more aggressive, performance-tuned spring formula and threaded height-adjustable collars, giving you full control over stance and ride height.

Recognizing the G8x platform's inherent rear-biased oversteer, Dinan calibrated spring rates 15% stiffer in front and 10% softer in the rear for superior balance. The factory progressive-rate rear springs are replaced with a Dinan-spec dual-rate setup, increasing predictability, compliance, and rear grip — exactly where the G8x needs it most.

SPECS

• Retains factory electronic (adaptive) dampers for seamless integration
• User-adjustable ride height via threaded collars, front and rear
• Balanced spring rates: 15% stiffer front, 10% softer rear vs. stock
• Dual-rate rear springs (replacing factory progressive-rate) for improved predictability and traction
• Significant reduction in body roll, dive under braking, and squat under acceleration
• Lowering range: up to 1-1/8" front, up to 2-1/4" rear (tire clearance dependent)
• Recommended street drop: 3/4" (M4) or 7/8" (M3) front, 3/4" rear for a civilized ride
• Up to 1/2" front / 1-1/4" rear lift over stock also possible
• Legal for sale or use on Emissions Controlled, Non-Emissions Controlled, and Racing Use Only vehicles (does not affect emissions)

PARTS INCLUDED

• 1x adjustable coil-over suspension set (front and rear)
• Suspension packers for fine-tuning bump-stop clearance

TECH RESOURCES

• Installation Instructions (PDF)
• Compatible with factory electronic shocks — dampers are retained, not replaced
• Installer note: due to the extensive lowering range and increased suspension travel, tire clearance must be carefully evaluated under all driving conditions. Safety may be compromised if precautions are not taken.

PART NUMBER

• D190-8210

VEHICLE APPLICATIONS