Flatout Suspension GR50 – Professional Rally & Motorsport Coilover Suspension

The Flatout Suspension GR50 is our flagship competition coilover system, engineered for the most demanding forms of motorsport — from stage rally to rallycross and mixed-surface racing. At its core, the GR50 features massive 50mm inverted dampers housed inside 62mm threaded bodies, creating a suspension package that is nearly indestructible under race conditions.

This oversized construction not only delivers unmatched rigidity and strength but also maximizes oil capacity for consistent performance during long, punishing events. With rebound damping adjustment, the GR50 gives professional drivers the tools to fine-tune for ultimate control on tarmac, gravel, or dirt.

Key Features of the GR50 Coilovers

• 50mm Inverted Dampers in 62mm Threaded Housings → Built to withstand the harshest rally impacts with uncompromising strength.

• 0–2” Adjustable Ride Height → Optimize stance and geometry for different rally and rallycross conditions.

• External Reservoirs → External reservoirs allow for more oil capacity for increased heat resistance and damper fade.

• Adjustable Damping → Rebound tuning for ultimate precision.

• Bypass Piston Valving → Provides compliance over small chatter while controlling large jumps and impacts.

• Competition-Ready Springs → Available in setups for rally, rallycross, or mixed-surface motorsport.

• Rebuildable & Serviceable → Designed for long-term race use and tuning flexibility.

• Electroplated Shock Bodies → 7–10 years of corrosion resistance for consistent, reliable performance.

Who Is the GR50 For?

• Rally Drivers → Professional and grassroots competitors needing the strongest, most tunable suspension available.

• Rallycross Racers → Drivers pushing through tight courses and mixed surfaces with no room for fade or failure.

• Motorsport Enthusiasts → Track and mixed-use racers seeking pro-level adjustability and endurance.

• Race Teams & Builders → High-performance suspension designed to handle serious competition.

Customer Benefits

• Nearly indestructible construction with 50mm inverted dampers + 62mm housings.

• Rebound adjustment for precision setups.

• High level of endurance.

• Designed to survive rally jumps, gravel impacts, and motorsport abuse.

• Fully rebuildable for season-after-season racing.