PRODUCT OVERVIEW: - Full recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performace and reliability benefits of a quality BOV. Suits Mazda MPS. PRODUCT INFO: - Full recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performace and reliability benefits of a quality BOV.
