first get a set of new pipes and the noss coolhead. then get porting and worry about bolt ons later, you wil be much happier with porting. like 05bansh said, talk to dlnoss about your elevation and if u want to run pump gas or race gas, he will tell you what domes you need. as for pipes, for the trails: fatty's, dmc's, pt mids. for the dunes: cpi's, shearer's, rocket's, t5's. if you ride all around you'd probly be much happier with fatty's.