H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 375 lbs/inch 2009-infiniti-g37-esi6820794 This air intake system was

This air intake system was developed to accommodate the engine's factory emissions control devices including the mass airflow sensor and engine breather hoses

like its Brake and Clutch Reservoir Covers

10AN PTFE hose and hose-end fittings

Designed to complement Skunk2 Lowering Springs or Adjustable Sleeve Coilovers

Brembo 05-11 Elise (Excl 4-Caliper Equipped) Fr GT BBK 4Pist Cast 2pc 328x28 2pc Rtr Drill-Black

H&R 2.5 inch ID Single Race Spring Length 14 inch Rate 375 lbs/inch 2009-infiniti-g37-esi6820794 This air intake system wasH&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