Flatout Suspension GR40-PRO – Professional Rally & Rallycross Coilover Suspension

The Flatout Suspension GR40-PRO is the pinnacle of our rally-proven suspension lineup. Designed for professional rally, rallycross, and competitive motorsport use, the GR40-PRO coilover system delivers unmatched durability, adjustability, and control. If you’re serious about racing or building a competition-ready vehicle, this is the suspension upgrade built for you.

Unlike entry-level or mid-tier suspension kits, the GR40-PRO is engineered with advanced valving, inverted shocks for maximum strength, and external reservoirs for superior cooling and endurance. With full adjustability, it allows you to fine-tune rebound and compression settings for tarmac, gravel, or mixed rally stages.

This isn’t just an upgrade — it’s a professional-grade suspension system designed to win races and survive the harshest conditions.

Key Features of the GR40-PRO Coilovers

• Motorsport-Grade Construction → Designed for rally, rallycross, and professional competition.

• Ride Height Adjustable (0–2”) → Dial in the perfect stance and geometry for your surface.

• Inverted Shock Design → Rally-strength durability, reduced flex, and improved heat dissipation.

• External Reservoir Shocks → Increased oil capacity for endurance and fade-free performance.

• Advanced Valving & Bypass Pistons → Tuned for rally conditions, offering comfort in transit and precision under load.

• Fully Adjustable 3-way → Fine-tune rebound, high & low speed compression for tarmac, gravel, or off-road rally stages.

• Rebuildable Design → Serviceable for long-term racing use.

• Premium Finish → Electroplated shock bodies for 7–10 years of corrosion resistance.

Who Is the GR40-PRO For?

• Professional Rally Drivers → Compete with confidence in ARA and NASA rally or rallycross events.

• Grassroots Competitors → Take your racing setup to the next level with pro-grade suspension.

• Motorsport Enthusiasts → Drivers who demand maximum durability, adjustability, and race-winning performance.

Customer Benefits

• Rally-proven design trusted by competitive drivers.

• Handles the harshest conditions — tarmac, gravel, or dirt stages.

• Delivers precision handling, endurance, and control.

• Adjustable suspension that adapts to your driving style and terrain.