Being totally new to the 6.0. I have asked many people that consider themselves "diesel" guys......why does everyone say to gets 06/07? So what are the differences? So far I have heard....different head studs, different oil cooler, hard lines on turbo, different turbo, different ficm, different programming, and different injectors. So are any of these true? Or does a 06/07 require the same upgrades/updates as a 03/04/05?