Awesome, thanks!
I found this piece with a 3" outlet that shouldn't compromise the volume from the dual 2" primaries: http://www.burnsstainless.com/images...e_std-2-1.aspx
Burns says it is approximately 10.5" long.
Were I to go this route, I'd plan on lopping off the muffler piping right after the second resonator and transitioning immediately to that y-pipe. The only thing that worries me is the little dip in the piping right after that for (I'm assuming) suspension clearance... hmm.