H&R 60mm ID Single Race Spring Length 90mm Spring Rate 280 N/mm or 1600 lbs/inch - RF090280 Tools it's also what leaves it

it's also what leaves it open to carbon buildup and detonation caused by blow-by

Not Applicable

Consistent carbon weave alignment and flawless gloss finish

Turn up your exhaust note while maintaining a mild interior sound level

and improved exhaust scavenging

H&R 60mm ID Single Race Spring Length 90mm Spring Rate 280 N/mm or 1600 lbs/inch - RF090280 Tools it's also what leaves itH&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