Dual Piston Blow Off/Dump Valve Colour:Black Our valve uses full billet

Our valve uses full billet alloy construction with a piston based internal design that provides for significantly improved reliability over the OEM valves along with lightning fast response

Small diameter: 60mm (2 3/8")

expansion tank lower top hose

Mega Flex straight hoses are 1 metre in length

Dual Piston Blow Off/Dump Valve Colour:Black Our valve uses full billetSuitable for most turbo cars with an Air Flow Meter. Made from billet aluminium, this atmospheric diverter valve dumps the charge air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. Unlike single piston or diaphragm diverter valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking