H&R 2.5 inch ID Single Race Spring Length 10 inch Rate 300 lbs/inch - R25100300 Valvetronic Designs 75" to a set of

75" to a set of classic quad AMG-style tips

Two exhaust gas temperature (EGT) ports are provided with this system

Vehicle Compatibility: 91-94 Audi S4 (C4)

1996-1998 BMW 328i Base 2

H&R 2.5 inch ID Single Race Spring Length 10 inch Rate 300 lbs/inch - R25100300 Valvetronic Designs 75" to a set ofH&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