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The Turbosmart PlumbBack recirculating valve in 32mm (blue) returns vented boost back into the intake tract instead of releasing it to atmosphere. Offered as a quiet alternative to an atmospheric blow-off valve, the PlumbBack system keeps excess pressure in the induction system to preserve turbocharger and boost behavior while providing a more subdued sound profile.
Turbosmart BOV Plumb Back Uni 32mm-Blue
