Product: Forge - Dual Piston Dump Valve (25mm)

Details
The Forge dual piston dump valve is suitable for most turbo cars with an air flow meter.(flange 25mm)

Opel Vectra, Calibra turbo
Fiat Uno turbo
Ford Ecort RS turbo
Nissan 200SX, Silvia
Toyota MR2

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 air into the intake system at idle. This prevents our diverter valves suffering any of the failures associated with single piston and diaphragm type diverter valves.
All Forge Motorsport dual piston atmospheric valves have been designed and built for venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift.