I have just recently purchased a 2008 xb12r with 8500 miles, the bike appears pure stock, except for a kn filter. I have read as many posts as I can, but I am hoping some of you could share important facts I may need to know about this model. The bike did not come with an owners manual and any information about proper maintainance or known common performance/maintainance problems would be appriecated. Also, my reading has lead me to believe that the 08 model year was significant for ecm mods. I'm not looking for more speed or power, but I do want the bike to run as efficient as possible. Immediate plans will include either Hawk or Jardine exhaust, but dont want to do any mods that will cause engine damage. So just to verify, is updating the exhaust advised without ecm upgrades? Also, does ecm mods exsist that will improve mpg? Thank you in advance for sharing any knowledge that will ensure my ownership of my firebolt will be long and happy venture.