In matters like this, I tend to let someone else go first ... especially if I don't have another one laying around just like it. lol
I'm curious about that myself since I eventually want a set of Roadster TOR's for my '08. Since there are cats built into the other end of the cans, I'd believe just about anything could be hiding in there. A Triumph exec said the exhaust is where the extra numbers for the Roaster come from, I don't believe him for a second but it makes you wonder don't it? If you do take the plunge, let everyone know what you find in there.