I am waiting for my new WR450F due in this week. If I remove the airbox baffle, replace the exhaust baffle with the Yamaha GYTR one, cut the throttle stop and gray wire. do I need to rejet as well. I am just south of Boston at about sea level. I read the article on offroad.com and it didn't mention rejetting. What do you guys think. If I need jets I want to get them the same day I pick up the bike and get the mods done all at once.