Turbosmart Kompact Plumb Black Blowoff Valve for Mazdaspeed 3 / 6 / CX-7
Full recirculating BPV. The Plumb Back system recirculates all excess pressure back into the intake system. Running full recirc has the best drive ability on a maf based boost control system. Great for enthusiasts not wanting to be noticed but wanting the performance and reliability benefits of a quality BPV.