Re: 05 6.0 upgrades ???
I disagree, i dont think that studs are a must especially if he is only going with a mild tune, this being said get an SCT with custom tunes not some canned tunes like Edge, ect... I have an 05 and have been pulling the $#!t out of my truck lately and have Dfusers agressive tow tune and pro race and have not had any trouble with heads (knock on wood).
2005 F-250 King Ranch
2.5" Ready Lift Leveling Kit. 4" Blocks
SCT-muffler delete anlong with some other things
IDP Tow, Extreme Street