Hi, I have a 2009 SEUC4 and I live in Libertyville, Illinois.
I personally replaced the stock HD baffles with Fullsac's 2.25" baffles and also did the TTS Mastertune download with the base program provided by Steve at Fullsac.
They are both pretty easy to do if you have some degree of mechanical and computer ability.
I was very nervous about grinding off the three (3) spot welds holding the HD baffle in place.
I used a dremel tool with grinding stone and took my time.
Make sure you have plenty of light shining into/onto the baffle so you can see your progress.
The TTS software download, if I remember right requires you to do an update before actually loading the program onto your bike's ECM.
Make sure your download and carefully read over all the written material on the TTS site before doing it.
Good luck.