BOV V-Band to 38mm AdapterTurbosmart's Blow Off Valve Adapter V Band to 38mm is designed for Turbosmart Plumb Back, Dual Port, and Supersonic Universal Fit BOVs. This adapter allows users to convert their universal BOVs for use with Turbosmart 38mm OD fitting kits and Universal 38mm OD pipes. An O Ring seal securely holds the adapter in place and grub screws attach it firmly to the pipe or fitting kit. Turbosmart provides a reliable solution for upgrading their engine setup