Skunk2 Honda and Acura Ultra Series Race Manifold F20/22C EnginesBrand Skunk2 Racing Part Number 307 05 9100 Category Engine Components Intake Manifolds Condition Brand New Original Manufacturer Packaging The engineers at Skunk2 Racing have worked tirelessly to develop the next generation of high performance intake manifolds and are proud to announce the release of the much anticipated Ultra Series Intake Manifold. Years of R&D have culminated in a multi piece cast aluminum intake manifold that offers advantages