H&R 2.5 inch ID Single Race Spring Length 10 inch Rate 300 lbs/inch - R25100300 Valvetronic Designs and elegant

and elegant

The included core is our proven Mishimoto 16 row stacked plate cooler which can withstand high fluid pressures and significantly reduce oil temperatures while exhibiting minimal pressure loss

and attaches with no additional hardware

Vehicle Compatibility: 91-94 Audi S4 (C4)

H&R 2.5 inch ID Single Race Spring Length 10 inch Rate 300 lbs/inch - R25100300 Valvetronic Designs and elegantH&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