Well third week and no replacement parts (cat or dpf) available. Installed the delete kit, last weekend couldn't have my truck hung up for another two weeks. I get 20.5 miles per gallon, reduced egt's 200*, spools faster, more HP seat of pants, runs better then my 5.9. I don't care if the dealer ever calls me back.
Not going back now, and will never replace the parts. I'm not about to have my truck spend it's warranty days in a dealership waiting for a turbo cleaning, replacement turbo, dpf, cat or egr replacement parts ever again.
And another thing, it is a peace of mind, not having to worry about the "ding" going off all the time, worry about the percentage of dpf, going into re-gen, or traveling far whether you'll make it or not. Now all you do is check the outside temp, and smile at fuel gauage. That's the way it should be.