Hi, I have been searching around for a solid thread on doing the free mods on a 08' Yamaha WR450F, but have not found one specifically...any help? Also, what are some other mods worth paying for that will make the bike run to its full potential? I get the bike on 3/9/09, bought a FMF Q4 Silencer exhaust to replace the stock and a dynojet kit for for the high altitude. I ride mostly in Colorado above 7000 feet. Thanks.