Hah!! Kevin, are you filling in for Spike while he is out riding? You didn't cut and paste his 'Search' speech.
NightHawk, if you are worried about your warranty on the bike, get ready to shell out some serious money to get pipes, air intakes, etc., mounted on the bike by the dealership. To fill you in a little though, the 18 always feels like it could use an extra gear at highway speeds, the 13 final eases this a little by lessening the rpms and gives you a truer speed and odo reading.