Dual Piston Blow Off/Dump Valve Volkswagen > Touran > II 1.4 150BHP This kit can also be

This kit can also be used in combination with our FMDVTUN spring kit for the tuning of our twin piston atmospheric blow off valves

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

expansion tank lower top hose

noticed the difference instantly without having the car remapped

Dual Piston Blow Off/Dump Valve Volkswagen > Touran > II 1.4 150BHP This kit can also beSuitable 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