A direct-fit high-performance replacement for the factory all-plastic unit, the Turbosmart Kompact BOV suits the Hyundai i30N, Kona N & Veloster N. The Turbosmart unit is made of billet aerospace-grade aluminum with high-temperature seals that allow for minimal leakage and a complete seal across the bypass aperture, providing as much performance as possible.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.