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

Flatout GR40R Coilovers for 2008–2014 Subaru WRX

The Flatout GR40R coilovers are designed for Subaru WRX drivers seeking rally, rallycross, and competitive motorsport performance. Building on the proven GR40 system, the GR40R adds external reservoirs on all four shocks, increasing oil capacity to keep dampers cooler, fade-free, and consistent under the extreme heat and abuse of competition.

Perfect for drivers charging through gravel rally stages, tight rallycross courses, or back-to-back track sessions, the GR40R delivers reliable damping performance when lesser systems cannot.

Key Features

• External Reservoirs on All Four Shocks – Provides more oil volume for cooler operation and fade-free endurance.

• 0–2 Inch Adjustable Ride Height – Fine-tune stance, suspension geometry, and tire clearance for rally or track conditions.

• Inverted Shock Design – Rally-proven strength and rigidity for handling harsh impacts.

• Bypass Piston Valving – Smooths small chatter while controlling large bumps and jumps.

• 1-Way Rebound Adjustment – Easily tune suspension response to match surface conditions.

• Rebuildable Construction – Serviceable and tunable for long-term motorsport use.

• Electroplated Shock Bodies – Corrosion resistance rated for 7–10 years of reliable performance.

Who Is the GR40R For?

• Rally Drivers – Ensures consistent damping over long stages where heat management is critical.

• Rallycross Racers – Provides precision and fade-free performance during intense, short sessions.

• Motorsport Enthusiasts – Grassroots competitors or teams wanting pro-level suspension without upgrading to GR50R.

• Builders & Tuners – Projects requiring rally-strength durability with endurance upgrades for extreme use.

Customer Benefits

• Fade-free performance with external reservoirs on all four shocks.

• Rally-tested coilover strength with enhanced endurance for competition.

• Adjustable rebound for fine-tuned suspension behavior tailored to driving style.

• Rebuildable and serviceable design for long-term motorsport use.

• Greater consistency and control than standard GR40 under competitive conditions.

FITMENT

2008–2014 Subaru WRX
All Trim Levels and Drivetrain Configurations