RBC and RRC cut/port service from OdysseyFab, $250 plus return shipping. We are offering a cut/port/re-weld service for Acura/Honda K20/K24 RBC manifolds. You supply your stock manifold and get it back ported. We've seen over 10hp gains over stock just with porting! If you provide the throttle body adapter I will port match that as well. Nitrous bungs can be added either on top or underneath for an additional $80.