Awsome site, tons of info...in fact, I think I'm in overload.... I'm a COMPLETE NOOB to modern dirt bikes (Last one I was on was a '84 XR 500), although I do have street bike experience I just picked up a 2004 WR450 (Canadian), and I'm seeing some conflicting posts/info...I have looked at dozens of posts...can someone perhaps set me straight on the following? Free Mods: - Throttle Stop - does, or does NOT need to be done on a 04 CDN bike? - Grey Wire - yes, it has it, or, no it does not, or yes it does, but it doesn't do anything?? - Air box, no snorkel on mine...dunno if there ever was one...mods needed? Any help to ease my poor confused and overloaded brain would be a GREAT help! Thanks!