H&R 60mm ID Single Race Spring Length 85mm Spring Rate 60 N/mm or 343 lbs/inch - ZF085-060 Shift Boot Not a full air spring

Not a full air spring kit

Also included is four auxiliary 1/8" NPT sensor ports are provided for the use of sensors or any type of injection

who makes the best performance

At Valvetronic Designs we are often imitated but never duplicated

000cfm air filter and premium hardware

H&R 60mm ID Single Race Spring Length 85mm Spring Rate 60 N/mm or 343 lbs/inch - ZF085-060 Shift Boot Not a full air springH&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