Kompact Dual Port-25mm TS-0203-1022 Dual outlet-type BOV. Dual Port vents both to the atmosphere and 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. Easily converted to a full atmospheric or full bypass unit by using supplied port blanking plug.

Kompact Plumb Back-25mm TS-0203-1222 Full ecirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performance and reliability benefits of a quality BOV. APPLICATION: Fits most cars using the factory BOSCH or DENSO bypass valves.