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Message: <blockquote data-quote="Petras" data-source="post: 378266" data-attributes="member: 216">not trying to join the pissing match, just give my personal 1st hand experience.  I deleted my 14 6.7l cummins when the DEF tank sending unit went out.  was cheaper by about $700 to delete it than it was to replace the sending unit/pump that are apparently an integral unit.Deleting did a few things for me.  My fuel mileage went from 13-14mpg average @ highway speeds to about 19-20mpg under my normal driving conditions/style.  Sometimes, if I'm really nice to Betty White she'll show me 22 to 23 mpg.During the deletion process I had them program a 75hp tune in Betty.  The notion that tuning for more power won't give you better fuel efficiency is, in my experience, incorrect.  If you go crazy, trying to add 250 or 300 hp then yes, you are less likely to see big gains in fuel economy, but if you are reasonable with the tune you will most definitely see efficiency improvements....  besides all that, 250 to 300 additional HP is not real great on stock components.   This is why I opted to not have a display mounted on the dash that would allow me to change the tune.  Lock er in at 75hp and leave it. The biggest difference that I saw when deleting/75hp tuning was the elimination of the infamous dead pedal that rams are known for.  I went from mashing the pedal and waiting 5 minutes (ok maybe not really 5 minutes..) for the boost to build and then taking off, to on demand throttle response immediately.I would be hesitant to delete any of these new trucks stricly because of the cost.  If I'm not mistaken it's upwards of $10k to delete any of these newer trucks and to me, paying that kind of money to void a warranty just isn't worth it...Just my .02</blockquote>

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