IIRC, the 300 pipes are glasspacks, so maybe the pipes are good, but the baffles are burned out?
On a related note, once the glass baffling burns out in the pipes, how much of an operation is it to re pack it?
ETA:
That bike is in Dallas, right near me. If I had the money, I'd walk over and buy it and worry about stuff like that later. Seriously, why is it that there are NEVER bikes available near me, then one I want (but can't afford) pops up right next door?