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I have the mpvi3 hardware but sold the vette and now have a ?11 Navigator. I dont know how to do this so should i just get a sct and go the easy route or has someone here done a tune for na 5.4v8 in Navigator ? I had the mpv because my vette was supercharged. No longer own.
Absolutely what are you trying to do to the truck and have any modifications been done to it as of now? Let me know very familiar with the pcm in these trucks and since yours is a 2011 it have the mechatronic tcm in the trans so make sure you read it as well when you go to pull the stock calibration.
Once you pull it post it and let me know what you are wanting out of the truck. Is it for daily driving / economy or towing?