NEUSPEED Sport Springs are made from the highest quality spring steel for unsurpassed performance and safety, they won't bind or sag. They are precision manufactured in the most advanced and modern factory in Germany. Each NEUSPEED coil spring is designed and tested at our R&D center in Camarillo, CA by our suspension engineers to deliver aggressive looks and high-performance handling without ever compromising safety or driving quality, then put to the test on the street and on the track by high-performance driving professionals. Improve the appearance of your vehicle with a reduced fender gap. NEUSPEED sport springs lower the vehicle's center of gravity, reduce body roll for better handling and reduce front dive under hard braking. The progressive spring rate design provides exceptional ride quality and comfort. With our 40+ years in suspension tuning, we offer a much more tuned and specialized spring compared to competitors. FEATURES Experts in refitting precision German-made springs since 1907. Vehicle-specific spring rates, tuned for street and track, for the ultimate combination of ride and handling. ISO-9002 certified quality standards exceeding TUV, DIN and SAE specifications. Each spring is heat treated, shot peened and double locked - guaranteed not to sag. Chrome and chrome vanadium silicone wire. The world's best cold winder on computerized CNC Wafio winders. Limited lifetime warranty.