H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 225 lbs/inch - R25140225 fits_2003-2010`Dodge`Viper 5x130 lug pattern

5x130 lug pattern

Integrated Bump Lock Filter Mounting Design

M235i model ONLY

100% Twill Weave Carbon Fiber Construction

H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 225 lbs/inch - R25140225 fits_2003-2010`Dodge`Viper 5x130 lug patternH&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