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

Flatout GR50 Coilovers for 2005–2007 Subaru STI

The Flatout GR50 Suspension System is a flagship motorsport coilover kit engineered for the 2005–2007 Subaru STI. Designed to handle the most demanding environments — including stage rally, rallycross, and mixed-surface racing — the GR50 delivers unmatched durability, precision, and endurance.

At the core of the system are massive 50mm inverted dampers housed in 62mm threaded bodies, creating an incredibly strong suspension setup capable of withstanding extreme rally impacts and high-speed competition. The oversized design also increases oil capacity, helping maintain consistent damping performance during long, punishing events.

Height Adjustment Range

• 0–2” Adjustable Ride Height → Optimize stance, suspension geometry, and ground clearance for rally stages or motorsport setups.

Key Features

• 50mm Inverted Dampers with 62mm Threaded Housings → Maximum strength and rigidity for motorsport use.

• Adjustable Rebound Damping → Fine-tune suspension response for tarmac, gravel, or dirt stages.

• Bypass Piston Valving → Absorbs small surface chatter while controlling large jumps and impacts.

• Competition-Ready Springs → Configurable for rally, rallycross, or mixed-surface racing.

• Rebuildable & Serviceable Design → Built for long-term competition use and tuning flexibility.

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

Who Is the GR50 For?

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

• Rallycross Racers → Drivers navigating tight courses and aggressive mixed surfaces.

• Motorsport Enthusiasts → Racers demanding pro-level adjustability and durability.

• Race Teams & Builders → High-performance suspension designed for serious competition builds.

Customer Benefits

• Nearly Indestructible Construction → Massive 50mm dampers and 62mm housings built for rally abuse.

• Precision Rebound Adjustment → Dial in the perfect setup for your driving style and terrain.

• Motorsport-Level Endurance → Designed to survive jumps, gravel impacts, and extreme racing conditions.

• Fully Rebuildable → Built for season-after-season racing performance.

The Flatout GR50 Coilovers provide the 2005–2007 Subaru STI with a professional-grade rally suspension system designed to handle the harshest motorsport environments while delivering precision control and long-term reliability.