Oh, by the way I'm a new member and have been surfing around for info on my bike and this is the place to be! Well, on to what's interesting. I just called Two Brothers Racing today inquiring about a DL650 exhaust system and after talking to their R&D department, I was told that the model they had to work with was taken back before they could fit an exhaust on. So what he said he'd do for me was if I took my bike in there, left it for three days, I'd have a brand new fitted Two Brothers Racing exhaust on there! I'll post a review sometime next month, I take the bike in the first of March.