Do you know the reason for uping the displacement? I was told by a Dodge salesman as well as other dodge owners that the 6.7 would have more emissions controlling and the motor would be downtuned which made the 5.9 more desireable... which made me think that removing some of that emissions stuff (on the 6.7) and starting out with a motor that was down tuned would mean that it would have more potential in the long run. Just my thoughts at the time... I know I didn't put much stock in what the salesmen said...lol. Sounds like it moves just fine in stock form anyways.
Do you know the HP and TQ specs vs the 5.9 and the new twin turbo powerstroke?
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06 Big Horn 2500: Bullydog with Outlook, 5" Magna Flow Exhaust, AFE Stage II Air Cleaner