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 If you spend any time

If you spend any time behind the wheel of your 955 or 957 Cayenne

5” lower than OEM

This kit also includes Mishimoto 2011

8 Liter T45OD

Turbine Gasket

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 If you spend any timeH&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