easy good mods? like 06+ parts on my 04

[quader400]

what newer parts are better and can be used on my 04 450r? i just found out about the 06 swing arm swap witch i will be doing, but what else is there. Like bigger carb on any of the later years, airbox, anything you guys can think of i would like to know thanks

[miles Machine]

look at the stickied section at the top that will tell you everything you need to know