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The Turbosmart PlumbBack recirculating valve in 32mm (black) vents excess boost pressure back into the intake tract rather than to atmosphere. Offered as a quieter alternative to an atmospheric blow-off valve, the PlumbBack system maintains recirculation of charge air for a subdued sound while preserving boost behavior and turbocharger operation within the induction system.
Turbosmart BOV Plumb Back Uni 32mm-Black
