Top mount blow off dump valve for the Subaru Impreza 2001-2006 GDA and GDB engine
Suitable for GDA/GDB engines with a standard top mount intercooler Brand new dump valve is for high performance applications with the desire to be noticed! If you need to ask this valve is too loud for you! A new larger body and a beefier piston ensures the valve remains smooth under the most demanding circumstances.
This valve relieves compressor pressure surge caused by changing gears or backing off the throttle quickly and is designed for turbo charged engines running high boost pressure. Please note this dump valve is only suitable for models with the original top mount intercooler, a blank plug is also required (not included).