Part Number FMD006
Made from billet aluminium, this recirculating diverter valve dumps the charge-air back into the air intake system keeping external noise to a minimum. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. For cars fitted with a MAF sensor it's essential to redirect this metered air back into the engine rather than dumping to the atmosphere.
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 this diverter valves suffering any of the failures associated with single piston and diaphragm type diverter valves.