Engineered for the Subaru Impreza WRX, the Riaction GP-1 Digressive Coilover Kit features digressive valving technology designed for responsive street and performance driving. This damping profile delivers firm low-speed control for improved turn-in, reduced body roll, and enhanced chassis stability, while maintaining compliance over uneven surfaces—resulting in a ride that feels planted without excessive harshness.

Built for drivers who want confident handling in both daily and spirited driving conditions, this system enhances AWD grip under load, improves cornering stability, and delivers consistent road feedback.

Each kit is constructed using high-quality materials and precision engineering to ensure durability, reliability, and repeatable performance.

Coilover Specifications

• Full-Length Ride Height Adjustment
• 32-Level Damping Adjustment
• Digressive Valving Technology
• Mono-Tube Damper Design
• 52mm Seamless Electroplated Carbon Steel Shock Body
• 20mm Piston Rod (McPherson Suspension)
• 14mm Piston Rod (Non-McPherson Suspension)
• 44mm High-Flow CNC 6061 Aluminum Piston
• Thinned CNC 6061 Aluminum Floating Piston
• Polyurethane Oil Seal
• SAE9254 Cold-Wound Spring
• Multi-Thickness Valving Shims
• Low Gas Pressure Design
• 7.5W Compounded Suspension Fluid
• Fully Rebuildable Construction

Spring Rates

• Front: 8K
• Rear: 4K

What’s Included

• Full set of 4 coilovers (front and rear)
• Spanner wrenches
• Damping adjustment knobs

Warranty

2-Year Factory Warranty against manufacturer defects.

International Orders

For international inquiries, contact:
info@riactionshocks.com