Upgrade the composure and grip of your 07-14 Subaru Impreza STI GRB/GRF with Riaction Traction Plus Ultra coilovers. Engineered for high-load AWD performance driving, the TPU system improves corner entry stability, reduces chassis roll under boost, and delivers more consistent traction during aggressive acceleration.

Traction Plus Ultra features our new digressive piston design, built to provide strong low-speed damping for enhanced body control and sharper steering response while remaining composed as suspension velocity increases. On the VA platform, this translates into improved transitional stability and greater confidence when pushing through high-speed corners or uneven pavement.

Each system is constructed with a nickel-coated shock body to protect against corrosion and environmental exposure. The hex screw preload collar locking system ensures spring preload remains secure under repeated track use and spirited driving. Signature orange-coated non-MacPherson components add durability and a distinctive finish, while pillowball upper mounts are included where applicable to increase steering precision and suspension articulation.

Every Traction Plus Ultra kit is backed by our 2-year factory warranty.

🔧 Traction Plus Ultra Coilover Features:

Full-Length Ride Height Adjustment
32-Level Damping Adjustment
New Digressive Piston Valving
Mono-Tube Damper Design
Nickel-Coated Shock Body for Corrosion Protection
Hex Screw Preload Collar Locking System
Signature Orange Coating on Non-MacPherson Components
Pillowball Upper Mounts (When Applicable)
44mm High-Flow CNC 6061 Aluminum Piston
CNC 6061 Aluminum Floating Piston
Polyurethane Oil Seals
SAE9254 Cold-Wound Performance Springs
Multi-Thickness Valving Shims
Low-Gas Pressure Internal Design
7.5w Compounded Suspension Fluid
Fully Rebuildable Coilover Assembly

⚙️ Factory Spring Rates:
Front: 8K
Rear: 8K

📧 International Orders:
For international shipping inquiries, please email us at info@riactionshocks.com

Maximize grip and high-speed stability in your 07-14 Subaru Impreza STI GRB/GRF with Traction Plus Ultra coilovers, advanced performance shocks engineered by Riaction Performance Shocks.