11 psi Blow Off Valve Spring AF59-2153 351W 570 Series PTFE 90° Hose

570 Series PTFE 90° Hose End -4ANBlack Finish

501-08BLK-25

The universal rotary vane design means it is engineered for constant use

45° Full Flow Female/Male Flare Swivel -20ANBlack Finish

Designed to suit -6 and -10 100 series hose or -8 and -12 200 series hoses

11 psi Blow Off Valve Spring AF59-2153 351W 570 Series PTFE 90° Hose11 psi Blow Off Valve SpringSuit AF64 5050 Blow Off Valve AF59 2153 59 2153 These replacement blow of valve springs are specifically designed to fit inside the Aeroflow Performance 50mm blow off 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, we offer either a softer 6 psi for turbo setups or a 2 psi spring designed for supercharger options.