H&R 60mm ID Single Race Spring Length 200mm Spring Rate 30 N/mm or 171 lbs/inch - RF200030 Air Intake Systems Reinforcing Ribs and Black Powdercoating

Reinforcing Ribs and Black Powdercoating w/ Machined Fins

Featuring detailed instructions

Tein 05-13 Lexus IS250 (GSE20) EnduraPro Front Right Shock

GReddy Nissan SR20DET S13 Pro Camshaft Intake 256-11

Or alternatively

H&R 60mm ID Single Race Spring Length 200mm Spring Rate 30 N/mm or 171 lbs/inch - RF200030 Air Intake Systems Reinforcing Ribs and Black PowdercoatingH&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