Forge Dual Chamber Blow Off Valve

Description:
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 blow off valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking air into the atmosphere at idle. This prevents a rich running condition at idle which can lead to fouled out spark plugs and idle hesitation/fluctuation.