Dinan High Performance Adjustable Coil-Over Suspension System for BMW M3 / M4 2021-2025

The Dinan Adjustable Coil-Over Suspension for the G8x M3/M4 blends track-level precision with daily usability for the discerning driver. Developed in the race lab but optimized for the street, this suspension system offers excellent handling and confidence-inspiring traction in any environment. With reduced body roll, minimized dive under braking, and limited squat under acceleration, Dinan’s system provides superb control and comfort.

This suspension design keeps the high-quality factory electronic shocks but upgrades the springs for enhanced performance. Unlike traditional stiff rear springs, which can lead to oversteer, the Dinan setup uses a dual-rate spring with a slightly softer rear spring rate to boost traction and predictability, delivering better grip and handling at the limit.

Features:

• Height Adjustment: Up to 1-1/8" lowering in front and 2-1/4" in the rear, although a recommended drop of 3/4" (M4) to 7/8" (M3) in front and 3/4" in the rear maintains optimal ride quality.
• Lifting Options: Up to 1/2" lift in front and 1-1/4" lift in the rear for adaptable setups.
• Optimized Spring Rates: 15% stiffer in front and 10% softer in the rear, providing a balanced, compliant ride.
• Reduced Body Roll: Improved cornering and stability during high-speed maneuvers.
• Dinan-Spec Progressive Bump Stops: Enhance ride comfort at lower ride heights.
• Suspension Packers: Allow fine-tuning of bump-stop clearance for tailored handling and comfort.
• Premium Construction: 6061-T6 aluminum components with black anodizing for corrosion protection and sleek looks.
• Quiet Operation: Utilizes stock upper spring mounts and isolators for a noise-free experience.

Note: To ensure safety with the lowered suspension and increased travel, installers must assess tire clearance carefully. Dinan assumes no responsibility for damage or injury resulting from improper installation.