ktm 450 exc

Hello, I just purchased a 2003 KTM 450 EXC. I live in ohio so in order to get the bike street legal I purchased the Tusk Dual sport kit that comes with the turn signals, rear tail light, horn, and multi fuction switch. I also order a Trail tech headlight because the stock one wasn't very strong...

The exhaust that comes stock on the 450 smr says exc racing. So my question is does the 07 450 exc slip on fit onto the 07 450 smr? If not does anyone know what exhaust do fit on the smr?

Hey guys, Ive decided to get another motard for commuting. Last one was a 2008 DRZ400SM, great bike. This time round i am thinking about trying the KTM450EXC. Since it will be used for my daily commute to work im just wondering what kind of mileage/km these bikes get to a tank of gas? looking...