RBC to 80mm Throttle Body Adapter PlateApplication: RBC Intake Manifold to K Tuned 80mm Throttle Body Note: The adapter are O Ring sealed so there is no need for a gasket between adapter or manifold Confirm that the 80mm TB you are using has a gasket The 2 piece design adapter plates allows an 80mm TB to be used on a RBC intake manifold. We are offering them separately for those wanting to run our Domestic Style Throttle Body or other aftermarket options. By using a specialized set of