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

Flatout GR40 Rally Competition Coilovers for 2005–2007 Subaru STI

The Flatout GR40 coilovers are engineered for drivers who demand precision, durability, and consistent performance in rally and motorsport competition. With 0–2” adjustable ride height, the GR40 allows you to fine-tune your Subaru STI chassis for tarmac, gravel, or rallycross, delivering balanced handling and dependable performance under extreme conditions.

Built with inverted shocks for rally-grade strength and endurance, the GR40 is designed to withstand punishing terrain and repeated high-speed impacts. Combined with proprietary valving and bypass piston technology, the system provides smooth compliance over small bumps and precise control during aggressive driving.

Key Features

• 0–2” Adjustable Ride Height → Tune stance and ground clearance for rally and competition.

• Inverted Shocks → Maximum strength, reduced flex, and improved stability in harsh conditions.

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

• Soft Rate LPS 2.5 ID Linear Springs → Comfort during transit stages with strong competition performance.

• OEM-Style Top Mounts → Maintains quiet operation and reduces NVH.

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

• Rebuildable Coilover Design → Long-term serviceability and race-ready durability.

• 1-Way Rebound Adjustable → 20 points of tuning to match driver preference and terrain.

• 3-Year Warranty → Confidence in competition-ready performance.

Why Rally Drivers Choose the GR40

• Designed for rally, rallycross, and motorsport competition.

• Delivers precision handling, durability, and endurance across gravel, tarmac, and mixed surfaces.

• Provides motorsport-level control without sacrificing comfort during transit stages.

• Serviceable and customizable for long-term competition use.

• Proven in real-world rallycross and grassroots racing.

The Flatout GR40 Coilovers transform the 2005–2007 Subaru STI into a competition-ready rally machine, combining strength, adjustability, and rally-proven engineering for drivers who demand race-level suspension performance.