wow that's what I call bad luck! did you finally keep it?
See my response #10 in this thread. I've got about 600 miles, mostly offroad, with a Q4 FMF slip-on and stock air filter. Runs great in the normal map. Don't care for the advanced map as it seems on or off with some flat spots on the gas. I just now put a K&N filter on it and will try it out this afternoon. Overall happy with the bike and will be a lot happier when I get my Garmin Montana 650 sorted out with proper maps and Ram mount.
BTW the bike seems to get about 45 mpg which is good enough for my riding. The pavement manners with the MT21's is very acceptable as well. Will use these tires again.