HONDATA FLASHPRO ECU HONDA CRZ 10-12HONDATA Flashpro. The only definitive way to get the most from any engine modifications you have made (such as air intake systems, exhaust systems, camshafts, supercharger, turbo etc) is to have the electronic control unit (ECU) in your car professionally tuned mapped on a dyno with a Hondata engine management system. Hondata systems modify the standard Honda engine computers (ECUs), adding features and expanding the capabilities of the stock ECU.