did the same on my 09 . just sold the truck for new 13 left over . i miss the pull of the 09 .. h@s has a tuner but only give you another 100 hs .. my 6.7 only has 1800 miles onm it so its no time to be tinkering with it for lossing a warrentee ..was in reply to the spartan tuner post .. sorry must not have quoted it ...