RBC Intake Manifold to 70mm J37 (ZDX/ MDX) Throttle Body AdapterFits all 2012 2015 Civic Si Fits all variant models including RHD, International Models, Etc. Overview Application: ZDX or MDX Pilot Throttle Body on RBC RRC Bolt Pattern Intake Manifold Technical Notes: It's no secret that Honda's RRC and RBC intake manifolds are some of the best flowing intake manifolds available from Honda for the K Series engine. RBC and RRC manifold swaps are a popular solution for engines equipped with less desirable intake