I'm not sure what the exhaust is. It is a 3-2, and the PO called it Jardine. They look like the current D&D's, but they've been on there a long time. I thought I saw where Jard made a 3-2 system way back when, so that's what I'm calling them until someone tells me better.
I didn't believe it was an 07, either, but I did read about 07 Classics having silver engines still. The production date markings on the bike show summer of '06, but it is titled as an 07, so either way could be right. Personally, I prefer the silver engines. Makes 'em even more obvious and emphasizes the size. I've already had a couple people stop, stare, and ask me about the engine. I'm a little nervous as I don't believe it ever had the update kit, but it has 30,000 miles on it, so I think it would've failed by now if it was going to.