Rev9 Hyper-Street ONE Coilovers Lowering Kit are designed for tuners on a budget. Engineered to lower your vehicle with the combination of proper lengthen shocks and High tensile springs to work together to provide perfect balance between comfort and performance. Rebuild-able Mono-Tube shocks with 32 damping force adjustment to help quickly stabilize and keep the wheels on the road when you hit a bump. High tensile springs are made from SAE9254 steel wire to assure high quality standards and longevity to withstand performance needs. Pillow-Ball top mounts provide sharper and precise handling are utilized if applicable. All these key features makes Rev9 Hyper-Street ONE are one of the best budget kits on the market today!