Engineered for the Kia Stinger, the Riaction Traction Plus Ultra (TPU) Coilover System is designed to maximize stability, traction, and control on a heavier, performance-oriented chassis. This system improves rear-end response, enhances braking composure, and delivers more consistent traction during aggressive cornering and acceleration.

At the core of the TPU system is a digressive piston design, providing strong low-speed damping for sharper turn-in and improved roll control, while maintaining composure as suspension velocity increases. This results in more predictable weight transfer, greater high-speed stability, and increased driver confidence during spirited driving and track use.

Built for drivers who demand precision and durability, the TPU system incorporates reinforced components and advanced materials to handle repeated high-load conditions without compromise.

Coilover Specifications

• Full-Length Ride Height Adjustment
• 32-Level Damping Adjustment
• Digressive Piston Valving
• Mono-Tube Damper Design
• Nickel-Coated Shock Body for Corrosion Resistance
• Hex Screw Preload Collar Locking System
• True Rear Coilover Conversion
• Signature Orange Coating on Non-MacPherson Components
• Pillowball Upper Mounts (Where 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 Construction

Spring Rates

• Front: 8K
• Rear: 10K

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