I just got off the phone with Steve at Fullsac. He's shipping me a new x-pipe, 2" baffles, and TTS Mastertune today.
While we were talking he emailed a photo of the x-pipe with stock heat shields installed. He also gave me the OK to post the photo. I know that earlier in the thread someone was asking to see pictures, so here it is. As you can see, the pic is from the "backside", but you can tell that the pipe is almost entirely hidden by the heat shields. It looks very well camouflaged and tough (but not impossible) for anyone to be able to tell it from the stock pipe.
When I get the new stuff on the bike I'll post some pictures...