Flatout Suspension 06-12 BMW E90 [GR40] GR4-0612E90

DISCLAIMER: This is a made to order item. The lead time for this product is 4-8 weeks.

Flatout GR40 Coilovers for 2006-2012 BMW E90

The Flatout GR40 Coilovers are engineered for 2006-2012 BMW E90 drivers who demand precision, strength, and consistency in rally and motorsport competition. With a 0–2” adjustable ride height, these coilovers allow fine-tuning of stance and ground clearance for tarmac, gravel, rallycross, or mixed-surface driving, while maintaining balance, control, and durability under extreme conditions.

The GR40 features inverted front shocks for maximum strength and reduced flex, combined with external reservoir rear shocks (where applicable) for increased oil capacity, cooling, and fade-free endurance. Proprietary rally valving with bypass pistons provides comfort at low speeds and exceptional control at higher speeds. Soft-rate LPS 2.5 ID linear springs ensure predictable handling, while OEM-style top mounts reduce NVH for quiet operation.

Electroplated shock bodies provide 7–10 years of corrosion resistance, and the rebuildable coilover design ensures long-term serviceability and competition readiness. The system also features 1-way rebound adjustment with 20 points of tuning to match driver preference.

Key Features

• 0–2” adjustable ride height for rally and competition

• Inverted front shocks for maximum strength and stability

• External reservoir rear shocks (application dependent) for fade-free endurance

• Proprietary rally valving with bypass pistons for controlled performance

• Soft-rate LPS 2.5 ID linear springs for comfort and handling

• OEM-style top mounts for reduced NVH

• Electroplated shock bodies for 7–10 years corrosion resistance

• Rebuildable coilover design for serviceability and longevity

• 1-way rebound adjustable with 20 points of tuning

• 3-year warranty included

Why Choose Flatout GR40

• Rally and motorsport competition ready

• Precision handling over gravel, tarmac, and mixed surfaces

• Superior durability for repeated high-speed impacts

• Serviceable and customizable for long-term use

• Proven in real-world rallycross and grassroots competition

FITMENT

2006-2012 BMW E90