i just bought a brand new 07 525 exc and need to do a few mods. I need to know about making it run cooler. Ie how to remove some of the exhaust restriction,or some of the other emmisions garbage that restricts the bike. (i think i am comfortable with new jetting but any advice would be great, i ride between 5k and 8k feet). Also planning to run 13 50 gearing and it appears enough people run this with good results, but any feedback would be cool. And what mods do i need to do. What about valves are they an easy task and who has a link to a well laid out step by step instruction. Thanx
Ps i read through 18 pages of forums to try and find answers but there is over 500 so i thought i would just start a new post.