74mm Drive By Wire Throttle BodyApplications: 2006 2015 Honda Civic Si 2006 2009 S2000 2013 2015 Acura ILX 2009 2014 Acura TSX Notes: Flashpro is required Instructions Drive By Wire Calibration Click HERE Our 74mm Drive By Wire Throttle Body is direct bolt on to RBC RRC manifolds and others with the same bolt pattern. It is a true 74mm bore which is larger than ZDX throttle at the butterfly. This throttle body requires some form of engine management (Flashpro) to properly manage the