H&R ID Race Springs (60mm Free Length, 143 lbs/inch Rate) qa1-mod-series-level-3-full-vehicle-handling-kit-and-axle-with-narrowed-9-in-housing All Sport Spec Damper parts

All Sport Spec Damper parts have gone through the highest standard of quality control and dyno testing before leaving the factory

and pressure sensors built in for cleaner installs and fewer fail points

Yellow Speed Racing Premium Competition Coilovers for the 2004-2013 Audi A3 Quattro (8P) deliver race-ready performance for track day enthusiasts

The ISC Suspension N1 V2 Coilover System for the 1997-2003 BMW 540i 5 Series RWD (E39) is the optimum suspension tool for improved handling for your street or weekend track car

H&R ID Race Springs (60mm Free Length, 143 lbs/inch Rate) qa1-mod-series-level-3-full-vehicle-handling-kit-and-axle-with-narrowed-9-in-housing All Sport Spec Damper partsH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and