ZDude,
I just purchased a 2009 xb12ss that hopefully will arrive in the next week or so (from out of state). Been thinking about changing exhaust and others have suggested the Drummer. Wonder if you have an update on your progress?
Second question would be does the unit offer sound baffling? I like loud pipes, but have read from others that the Drummer is very loud - surpassing 100db.
All the best