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

Flatout GR40 Rally Competition Coilovers for 2015–2021 Subaru WRX

The Flatout GR40 coilovers are built for drivers seeking precision, strength, and consistency in rally and motorsport competition. With 0–2” adjustable ride height, these coilovers allow you to fine-tune your Subaru WRX for tarmac, gravel, or rallycross, offering balance, control, and durability in extreme conditions.

Equipped with inverted front shocks for rally-grade strength and external reservoir rear shocks (on select applications) for endurance, the GR40 handles punishing terrain and repeated high-speed impacts. Proprietary valving and bypass piston technology provide smooth comfort at low speeds and exceptional control at high speeds.

Key Features

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

• Inverted Front Shocks → Maximum strength, reduced flex, and improved stability.

• External Reservoir Rear Shocks (application dependent) → Increased oil capacity for cooling and fade resistance.

• Proprietary Rally Valving with Bypass Pistons → Compliant at low speeds, precise at high speeds.

• Soft Rate LPS 2.5 ID Linear Springs → Comfort on transit, performance during competition.

• OEM-Style Top Mounts → Quiet operation with reduced NVH.

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

• Rebuildable Coilover Design → Serviceable and race-ready longevity.

• 1-Way Rebound Adjustable → 20 points of tuning for driver preference.

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

Why Rally Drivers Choose the GR40

• Built for rally, rallycross, and motorsport competition.

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

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

• Serviceable and customizable for long-term competition use.

• Proven in real-world rallycross and grassroots events.

The Flatout GR40 Coilovers for the 2015–2021 Subaru WRX offer rally-grade durability, adjustability, and performance, making them a professional-level suspension upgrade for competitive and enthusiast drivers alike.