AUDI A4/S4 (B9) 17+

Unlock the full handling potential of your Audi A4 or S4 B9 with the Riaction Performance Shocks Coilover Kit, engineered for drivers who want to achieve a lower ride height, improved cornering, and a comfortable yet responsive street ride. This complete suspension upgrade offers the perfect balance between daily drivability and spirited performance.

Each kit includes 32 levels of damping adjustment and full-length ride height adjustability, giving you total control over how your Audi rides and responds. Built from high-quality materials and precision-machined components, Riaction coilovers deliver consistent performance and long-lasting durability.

Backed by a 2-year factory warranty, this coilover system is designed to meet the needs of both street enthusiasts and performance-focused Audi owners.

🔧 Coilover Features:

• Full-Length Ride Height Adjustment

• 32 Damping Adjustment Levels

• Mono-Tube Damper Design

• Seamless 52mm Electroplated Carbon Steel Shock Body

• 20mm Piston Rod (for McPherson Suspension)

• 14mm Piston Rod (for Non-McPherson Suspension)

• CNC 6061 Aluminum 44mm High-Flow Piston

• Thinned CNC 6061 Floating Piston

• SAE9254 Cold-Wound Springs

• Polyurethane Oil Seals

• Multi-Thickness Valving Shims

• Low-Gas Pressure Design

• 7.5w Compounded Suspension Fluid

• Fully Rebuildable Coilover Assembly

📧 International Orders: For global shipping inquiries, please email info@riactionshocks.com.

Refine your Audi B9’s stance and handling with Riaction coilovers—precision-tuned suspension engineered for real-world performance.