Aeroflow 6 Psi Blow Off Valve Spring Use With -8 To -12" Hg Step fittings fuel/Air/water Part Number: AF42-1011

Part Number: AF42-1011

8mm (5/8") brass barb is designed to fit on top of the block next to the thermostat housing

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Aeroflow 6 Psi Blow Off Valve Spring Use With -8 To -12" Hg Step fittings fuel/Air/water Part Number: AF42-1011Part Number: AF59 2152 these replacement blow of valve springs are specificallydesigned to fit inside the Aeroflow performance 50mm blowoff valves. Both of our Aeroflow performance blow off valves feature a 11psi spring from out of the box. If you wish to change this spring, weoffer either a softer 6 psi for turbo setups or a 2 psi spring designed for supercharger options.