Diameter: 149mm

This correlates with all the known championship regulations

JR41 and JR43

A direct fit high-performance replacement for the factory unit

The Turbosmart vIWG Series of upgraded Actuators benefit from an increased 'Working Ratio' over the factory equipment resulting in improved boost response

BOV Race Port Female GenV - Blue No Weld Flange Junior's Diameter: 149mmTurbosmart Raceport BOV suit Female (Tial) Flange No Weld on Fitting Supplied. Will fit Tial Q Weld on Flanges. The largest and the highest flowing BOV in the Turbosmart range has just been redesigned and now features our unique collar design. 46% lighter and 25% smaller than the product it replaces, the new Race Port provides greater performance through faster turbo spool up from idle and reduced turbo lag between gears. SUPPLIED WITH: Vacuum