Rear wheel horsepower

Has anybody had there rear wheel HP checked before modifications on a 2003 to 2006 Z1000? According to the service manual Aussie Z's have a higher HP output than the U.S. model. This i believe is due to the ECU or possibly because it's Australian. I had mine dynoed before the mods and it was 121 HP to the rear wheel, this is at 4600 feet altitude. Of course dynoes vary so unless we had a direct comparrison it is really hard to tell. Remember a Jim Beam and a good brew enhance the tuning experience. If one is good 10 is better.