Dual Piston Blow Off/Dump Valve Volkswagen > Touran > II 1.4 150BHP expansion tank lower top hose

expansion tank lower top hose

OEM Number: 33551094551

4 TSI doesn’t have a dump valve from the factory

and a wall thickness of 5mm

Dual Piston Blow Off/Dump Valve Volkswagen > Touran > II 1.4 150BHP expansion tank lower top hoseSuitable 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