Thanks TB, I have done the exhaust and jets and mucked around with the air box, but I am not convinced that it makes that much difference except putting more dirt into the filter. I have replaced the front cog with a 13 tooth(much better response for hill climbs) my mates have 450’s etc and while my KLX has plenty for my riding ability, I would like that extra bit of excelleration to keep up on the longer straight sections. I might get a few quotes from bike shops before I decide to do it myself.
Cheers
Clarkey