Generally speaking the PC3 will come with just a base map that Dynojet loads for a stock bike. The base map they load is actually reasonably OK as long as you don't expect some kind of miracle. If you can use a laptop reasonably well, loading a new map will be no problem. A CD containing the software and several maps for your bike should come with the unit. I would suggest doing a little hunting to see if there is a map available for your mods if you have many mods on your bike.
2002 919 40,000 miles
"racing is life...everything else is just waiting"