A direct-fit high-performance replacement for the factory plastic unit, the Turbosmart Kompact BOV suits the new generation Honda VTEC Turbo engines found in the Civic Type R and Civic Type R (Fk2). It can handle high boost levels and is made of billet aerospace-grade aluminum with high-temperature seals.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.Pure vent to atmosphere All billet CNC construction and attractive anodized finishManufactured, assembled and validated in-house at Turbosmart HQDirect fit upgrade for the factory BOV on Honda Civic Type R