Honda Civic FC Si Coilovers (2017–2021) – Traction Plus Ultra

Refine chassis stability and cornering consistency in your Honda Civic SI FC with Riaction Traction Plus Ultra coilovers. Designed for modern front-wheel-drive platforms, the TPU system reduces body roll, improves braking composure, and delivers more predictable front-end grip during spirited driving.

Traction Plus Ultra is engineered around our new digressive piston design, providing firm low-speed damping for stronger roll resistance and clearer steering feedback while maintaining composure as suspension velocity increases. On the FC chassis, this results in flatter cornering, improved mid-corner stability, and smoother weight transfer through rapid transitions.

Each kit features a nickel-coated shock body for corrosion resistance and long-term durability. The hex screw preload collar locking system secures spring preload under repeated high-load driving. Signature orange-coated non-MacPherson components add protection and a distinctive performance finish, while pillowball upper mounts are included where applicable to maximize steering precision and suspension articulation.

Every Traction Plus Ultra system 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: XXX
Rear: XXX

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

Deliver controlled handling and improved chassis balance in your Honda Civic SI FC with Traction Plus Ultra coilovers—engineered performance shocks from Riaction Performance Shocks.