H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 225 lbs/inch - R25140225 fits_2003-2010`Dodge`Viper 100% Twill Weave Carbon Fiber

100% Twill Weave Carbon Fiber Construction

Tein 00-05 Lexus IS300 EnduraPro Kit

High Quality Polyester Couplings

Monotube Shocks Dissipate Heat Quickly

5x130 lug pattern

H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 225 lbs/inch - R25140225 fits_2003-2010`Dodge`Viper 100% Twill Weave Carbon FiberH&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