Subaru Impreza V5 Piston Ram Closed Loop Dump Valve (Flange Mounted)

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner Alloy Recirculating Ram Dump Valve, flange mounted available to fit the Impreza V5. 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.   In The Box: 1 x FMDVV5013 Valve 1 x Forge Sticker If you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below.