i'd get a K&N intake. HP and MPG boost, along with tinting the windows. Also i'd say get your fender flares painted to match if you like that. But when i got my truck(got it back in dec. 08 and im 17) i got the radio first(deck, all door speakers and 2 subs which i did all myself) then got the windows tinted, then i put an intake in. Also i'd say switch over to synthetic oil if you havent already. other then that, rims and tires would be sweet, maybe a tonneau cover?