Getting your timing advanced and flywheel lightend is probably one of the best mods you could do! Another idea is, if you dont already have your air box removed, your gunna want to have that done. For sure! Be sure to get the k&n pods.
Another idea, if your not in love with your fmf's, think about trying some rockets or cpi's. Or if you dont want just wide open power, you cant miss with shearers or even t-5's.
No matter what you decide to do, RIDE HARD, RIDE FAST, AND ALWAYS SHEE'Z