well i just went yesterday and bought a 2004 black 4 door short bed. 6.0. needs 2 injectors and a turbo boot. got i t for a hell of a deal cause the guy i got it from really had no clue was a older man. anyways the thing is stock expect for the dpf stuff is gone behind turbo i think? im new too fords ive had alot of duramaxs and cummins never a ford figured id try it out. anyways. after i get those two things fixed what are some things too start out with too make these things sound good? i no that they whistle like a dang twin turbo truck. and i want mine doing that is it just simply exhast and cold air intake? or is there more too it then that? and what is the best tuner for power/fuelmilage? thanks guys! :ft: