ZDX Throttle Body Adapter - RBC/RRC Bolt PatternApplications: 2012 2015 Civic Si w Stock manifold This adapter is for our 72MM DBW (KTD 72D RBC) throttle body to work on the stock 9th gen plastic manifold. This will mate up to the existing O ring in the manifold flange, as well as utilize the supplied thermal gasket which comes with the throttle body, on the opposite side of the adapter. The adapter includes a tapered transition