Forge Competition Dump Valve

Competition blow-off dump valve. Single piston suitable for all turbocharged cars WITHOUT an air flow meter. Made from billet aluminium with a 25mm inlet and 3mm vacuum trigger. Available in polished or black finish.

This atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.