Hey Brother, Ron brings up a great point. If the bike is completely stock and you are tempted to make upgrades, be sure and check here before buying an exhaust system, cams and fuel programmer, suspension mods, iPod and sound system upgrades. A lot of them have become almost standardized in what people are installing but the return is pretty darn good.
Many are going the following route but it's your call and what you expect. Be prepared that your stock bike has a catyletic convertor in it and if you live in an area that requires emissions testing you may have to be creative. Many are going the Fullsac exhaust system (x-pipe or sport pipe) and then installing their new muffler baffles. But they also have a TTS programmer and numerous canned tunes for ease of installation. Cams are a different thing and subjective to your likes. Warranty comes into play of course so you have to figure that out as well. Suspension mods. Progressive monotubes upfront and their 940 rear shock is a very common and respected way to make your new bike ride much much better. There is the Traxxon front system and rear shocks like Biturbo and Legends air shocks but they'll set you back more coin.
Just wanted to catch you before the mod bug hits and you immediately take your new sled to the dealer for some mods. I haven't messed with my tuner yet but since we have a similar background you shouldn't have any problems. Lots and lots of good info here and lots of shops willing to help out plus make a little coin their way. It's just one of those things that's finally starting to settle into my brain. Harley sells us a bike and the industry that's built up around that sale keeps innovation coming to the market and income to those producing it. I would say cottage industry but more like a megapolous network.
IIRC there are some very good tuners and shops in your area but you'll find that out as you learn and ask. Cheers and enjoy.