Riaction AUDI A4 / S4 (B8) 09-16 Coilovers
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Upgrade your Audi’s suspension and driving dynamics with the Riaction Performance Shocks Coilover Kit, specifically engineered for the Audi A4 and S4 B8 platform. Whether you're looking to improve ride comfort, reduce body roll, or achieve a clean lowered stance, this coilover system is the ideal solution for street-focused performance.
Featuring 32 levels of damping adjustability and full-length ride height control, this kit allows you to fine-tune your suspension for daily comfort or a more performance-oriented feel. Crafted from high-quality materials and precision CNC components, Riaction coilovers are built for real-world durability and long-term reliability.
Each kit is backed by a 2-year factory warranty, giving you peace of mind and confidence in your investment.
🔧 Coilover Features:
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Full-Length Ride Height Adjustment
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32 Damping Adjustment Levels
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Mono-Tube Damper Design
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Seamless 52mm Electroplated Carbon Steel Shock Body
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20mm Piston Rod (for McPherson Suspension)
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14mm Piston Rod (for Non-McPherson Suspension)
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CNC 6061 Aluminum 44mm High-Flow Piston
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Thinned CNC 6061 Floating Piston
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SAE9254 Cold-Wound Springs
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Polyurethane Oil Seals
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Multi-Thickness Valving Shims
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Low-Gas Pressure Design
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7.5w Compounded Suspension Fluid
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Fully Rebuildable Coilover Assembly
📧 International Orders: For global shipping, please contact info@riactionshocks.com.
Lower your Audi A4 or S4 B8 with confidence—Riaction coilovers provide the adjustability, ride quality, and handling performance your build deserves.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.