KEM Mini Maxx tuning is not available yet that I know of for the 6.0, and agreed if you are going with a custom tuned option SCT is the way to go. IMO as well

 

That's good to know, thanks Tyler. That makes sense why it would be more money to get into a custom tuned H&S then, you need to buy the better programmer to do it. They're probably around $1k or so right?

Custom tuning is the way to go, and it's going to be needed anyways if the owner of said 6.0 wants to do an EGR delete or any mods later down the road.