H&R 60mm ID Single Race Spring Length 25mm Spring Rate 9.5 N/mm or 54 lbs/inch - ZF025-9.5 Blow Off Valves This kit also includes Mishimoto

This kit also includes Mishimoto 2011

Turbine Gasket

and the diffuser is easily removable when more ground clearance is needed

5 Layers Of Progressive Oiled Media

H&R 60mm ID Single Race Spring Length 25mm Spring Rate 9.5 N/mm or 54 lbs/inch - ZF025-9.5 Blow Off Valves This kit also includes MishimotoH&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