well, I've got 2 options, I've got an 04 F-350 with a 6.0. I want to bulletproof it, add a bat mo wheel, do erics Xtreme X tune, with a ficm tune. I know thats not cheap to do, so would it be better to do that or just find a 08 or 09 6.4 and do an intake tuner and exhaust? do the 6.4's have any downfalls? all help and info is appreciated.