Flatout Suspension 06-15 Mazda MX-5 [GR40] GR4-0615MX5

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

Flatout GR40 Coilovers – 0–2” Adjustable Rally Competition Suspension

The Flatout GR40 Coilovers are engineered for 2006–2015 Mazda MX-5 drivers who demand precise, durable, and adjustable suspension for rally, rallycross, and motorsport competition. With an adjustable ride height range of 0–2 inches, the GR40 lets you fine-tune chassis stance, ground clearance, and suspension geometry for tarmac, gravel, or mixed-surface racing while maintaining control and comfort during transit.

Built for endurance, the GR40 features inverted front shocks for rally-grade strength and (on select applications) external reservoir rear shocks for improved cooling and fade resistance. Proprietary bypass piston valving ensures compliance over small bumps and firm control over high-speed impacts. Soft-rate linear springs provide comfort off-track without compromising competitive performance.

Key Features

• 0–2” Adjustable Ride Height → fine-tune stance, ground clearance, and suspension geometry for rally and competition

• Inverted Front Shocks → maximum strength, reduced flex, and improved stability under harsh conditions

• External Reservoir Rear Shocks (application dependent) → increased oil capacity for fade resistance and heat management

• Proprietary Rally Valving with Bypass Pistons → compliant at low speeds, controlled at high speeds

• Soft Rate LPS 2.5 ID Linear Springs → comfort during transit stages and performance in competition

• OEM-Style Top Mounts → reduced NVH and quiet operation

• Electroplated Shock Bodies → 7–10 years corrosion resistance

• Rebuildable Coilover Design → serviceable for long-term competition use

• 1-Way Rebound Adjustable → 20-point tuning for driver preference

• 3-Year Warranty → confidence in competition

Why Rally Drivers Choose the GR40

• Rally, rallycross, and motorsport competition ready

• Precision handling with durable, fade-resistant damping

• Comfortable for transit stages without sacrificing control

• Rebuildable and customizable for long-term performance

• Proven in grassroots and professional competition

FITMENT

2006–2015 Mazda MX-5