It is VERY critical to monitor EGT'S, and you have to becareful with the added boost because the head bolts can't really take the extra stresses and will let the headgasket area breathe. Becareful as it will push the headgaskets out and you gain a water leak, typical of block /bolt breathing.
I have a guy that I work with that wanted to try to get a business going by doing mods to diesels, well he did one of his buddys trucks and that guy abuses his stuff and tried to pin the blame on the guy that I work with for issues that the owner of the truck is having and the whole situation got ugly. Also, I have a buddy that works at a Ford dealer and if you come in with an oversized exhaust they(his bosses) will bitch and assume that you have mods done and will not want to repair anything drivetrain related under warrentee. He said that Ford and International claim that by opening up the exhaust it causes shat they call turbo overspeeding and that that reaks havoc on the variable vein turbo and motor from over boosting.
I'm NOT knocking making any improvments to your vehicle just trying to give some hard learned experience advise. I have an '03 7.3L that is enhanced and love it! You will have to try to find a dealer that is what is called a performance orientated dealership, usually those folks will work with you when modified vehicles have issues. Also if a dealer refuses or claims that your mods broke the vehicle there is a leagl document/act called the Magneson & Moss act that states something to the fact that the dealer has to prove outright that the mods that were done specifically caused the failure. If you read the Bully Dog brochure on the last page they stated that they are not responsible for any damages done when you modify your vehicle using their product. Good luck, Tracy
P.S. Fwiw I am running Gale Banks Enginnering components, it seems that he is Fords test bed for their engineering on diesels.