Turbosmart's Kompact VR02 BOV was explicitly designed to fit the Hyundai Veloster Turbo. The Veloster's factory bypass valve is a plastic unit that becomes brittle and wears out over time. It can also be forced open at high boost levels - significantly if boost levels are increased over standard.Dual Port vents both to the atmosphere & back into the air intake. Ports with sequential timing allow quieter operation during normal driving, while getting all the benefits of a vent-to-atmosphere BOV under race conditions.