Turbosmart Mazdaspeed Turbosmart Kompact Dual Port BOV

The Turbosmart Kompact Dual Port BOV has some pretty awesome features for it's compact size and sleek non-flashy styling. This valve can be setup to run full recirculation back into the intake, full blow-off to atmosphere, or 50/50 of both. There's a preload adjustment, allowing you to fine tune and get the valve set just right for your build. 

Install guide and more info