Dual Piston Blow Off/Dump Valve Colour:Black Pre-applied high-temperature automotive-grade 3M foam

Pre-applied high-temperature automotive-grade 3M foam tape ensures the parts stay in position while creating a great seal between the upper and lower covers

Increase cooling capabilities along with greater stopping power

Pipercross Panel Filter PP1630 measures 236mm x 206mm

2018-2022 - SEAT Leon (MK3) 1

Yet crucially

Dual Piston Blow Off/Dump Valve Colour:Black Pre-applied high-temperature automotive-grade 3M foamSuitable 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