Turbosmart Gen V Race Port Blow Off Valve BOV - RED With Female FlangeTurbosmart Gen V Raceport BOV (suit Female Tial style Flange No Weld on Fitting Supplied. Will fit Tial Q Weld on Flanges) The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines. Featuring our unique collar design and internal flow structures, it is 50% lighter and 25% smaller than the competition while flowing 330 CFM making it the highest flowing BOV of its type on the market.