







GP-1 DIGRESSIVE ACURA TSX 04-08
SKU: AC-004-D-SS
Upgrade your Acura TSX with the Riaction GP-1 Digressive Coilover Kit, engineered with digressive valving technology for optimal street performance. This advanced damping profile provides enhanced low-speed stiffness for sharper handling and control, while maintaining compliance over rough roads—delivering a balanced ride that’s both sporty and comfortable.
Designed for daily-driven vehicles, this system offers a lowered stance, improved cornering stability, and refined road feedback without compromising ride quality.
Each kit is built using high-quality materials and precision engineering to ensure durability, reliability, and consistent 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: 10K
- Rear: 6K
What’s Included
- Full set of 4 coilovers (front and rear)
- Pre-assembled for direct installation
Warranty
2-Year Factory Warranty against manufacturer defects.
International Orders
For international inquiries, contact:
info@riactionshocks.com