Hey guys, I can get a pretty good deal on a 2009 ecu but when I called Honda they say theyre not sure if itll work because they have 2 different part numbers. Anyone plug in a 2009 or newer ecu into an 07 or 08?
I still wouldn't do it, the 2009+ have the upper end of the ignition timing retarded. You'll lose a good 6-10 HP depending on bike to bike. Most folks go from an 09 ECU to an 07-08 if they can find a cheap one as an alternative to buying a Power Commander IRC or any other similar product.