ok, i have a 2003 silverado Z71 with a 5.3 in it. i want more power, just becuase i have a sudden urge to just mod the hell of out my truck lol. but what to do?? all i have now it a cat back, jsut for sound.

what i want. i know i want to do an E-fan setup, headers, cam maybe, and try to do it all at once with a tune. also gonna do a CIA with it. but i have a few questions. i have no idea what is best. i want good stainless headers, or atleast ceramic coated so that they will last. an di am gonna go wheatley on the tune most likely. but i have no idea on a cam. also, how hard is a cam to install? i am kind of on a budget so nothing outrageous in price. i will probably do teh ford taurus 3.8 e-fan. also, i am gonna need a new exhaust setup with my header. can i run no cats and be ok? no emmsions here BTW. any other suggestion for some nice power?