After i buy a 2005 WR450. In what order should i do the mods? I'm thinkin leaving it in stock form excluding the limited throttle during the break in period. After the 10-15 hours of break in(or however long it takes. you tell me:excuseme:) ditch the AIS,then buy a new exhaust system and a jd jetting kit, gray wire mod, etc. whats the best order? and whats the best exhaust system for my $$$$$? i'm lookin at the pro circuit type 496. whats the best one for sound? performance? etc?