H&R 60mm ID Single Race Spring Length 140mm Spring Rate 300 N/mm or 1714 lbs/inch - RF140300 Carbon Accessories This performance module increase turbo

This performance module increase turbo boost and injectors duration to improve vehicle performance and throttle response

This kit includes Mishimoto silicone Boots with DuraCore technology

this Chevy Bel-air radiator includes the Mishimoto Lifetime Warranty

the exhaust continues 3

Affordable Excellence: Premium valved performance without the excessive “M tax

H&R 60mm ID Single Race Spring Length 140mm Spring Rate 300 N/mm or 1714 lbs/inch - RF140300 Carbon Accessories This performance module increase turboH&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