The Flatout SR coilover system offers a compelling blend of comfort and performance for the Audi A4 B8 S4 Avant Quattro. This review delves into the specs, features, and benefits of this suspension upgrade for daily driving, spirited backroad adventures, and occasional autocross competition.
Enhancing Audi A4 Handling with Flatout SR Coilovers
Flatout SR coilovers are designed to provide a noticeable improvement in handling without sacrificing everyday drivability. The system allows for a significant lowering range, from a subtle 0.5″ to a more aggressive 3.0″, both front and rear. This adjustability lets drivers fine-tune their vehicle’s stance and center of gravity for optimal performance and aesthetics.
The SR series utilizes a monotube shock design, facilitating easier rebuilds and potential future upgrades. This modular construction allows for component replacement and customization, ensuring long-term serviceability and adaptability. The shocks themselves feature a robust 52×1.5mm thread pitch, compatible with various aftermarket suspension components.
Flatout SR Coilover: Internal Components and Build Quality
Internally, the SR coilovers boast high-quality components designed for durability and performance. A Chromoly piston rod (14mm for A-arm suspensions) works in conjunction with a proprietary aluminum piston, stainless steel shims, and medium-weight synthetic shock oil. An aluminum floating piston separates nitrogen and shock oil, contributing to consistent damping performance. The entire assembly is housed within a nickel-plated shock casing for superior corrosion resistance.
Spring Technology and Camber Adjustment
Flatout SR coilovers utilize cold-wound linear coil springs, optimized for rate and length to maximize adjustment range without compromising stroke. Certain applications might utilize barrel springs to prevent binding in short-stroke setups.
Camber plates come standard, providing further adjustability for fine-tuning handling characteristics. A-arm suspensions receive pillow ball upper mounts, while multi-link rear suspensions typically retain the OEM upper shock mount.
Additional Features and Warranty
To prevent tire rubbing issues after lowering, Flatout includes 5mm wheel spacers with the SR coilover kit. Furthermore, adjustable front end-links for the sway bar are often included or the upper bracket is relocated to accommodate the new suspension geometry. Specific applications, such as the Porsche 996 C4, may require new front and rear links. Rear knob extensions are also available upon request.
Flatout offers a 3-year warranty against defects on their SR coilovers, providing peace of mind for buyers. Each set is hand-assembled and typically ships within approximately two weeks. Redline360, as an authorized Flatout dealer, ensures the warranty remains valid for purchases made through them.
Conclusion: Flatout SR Coilovers – A Performance Upgrade for Your Audi A4
The Flatout SR coilover system presents a well-rounded solution for Audi A4 owners seeking a balanced upgrade in both comfort and performance. With its adjustable ride height, rebound damping, and camber, the SR series allows drivers to personalize their suspension setup to match their driving style and preferences. The high-quality components, robust construction, and comprehensive warranty further solidify the SR coilover as a valuable investment for enhancing the driving experience of your Audi A4.
