Rick,
Welcome back. There are still lower cost aftermarket systems if you keep the same headers that price in the $300 - $500 range. If you want to change out the headers then you are looking at Carpenter and Viking (
@Paul Bryant ). lots of tunes to choose from if you want to try what others have come up with, though you may want to have your own tune done based on the age and wear-in of your bike. Some folks get the power commander V because that is what a lot of tuners tend to use, however the TuneECU program is still supported by many here.
Good luck on our search.