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Back and forth about next truck lease coming up soon on my 16 don't want a diesel but need a sd, or a more hd 150. Mechanic at my local dealer suggested tuning a gas sd said they respond fairly well. Not looking to make it a hot rod just maybe a little more fun to drive here and there when not towing
Have you test drove the truck yet? For a big truck it goes pretty well and the diesel isn't much faster due to the extra weight. You aren't going to make the SD much better out of a simple tune, you might lose a couple of tenths on a 0-60 time. You will need to do some engine mods to see any major difference, especially if you want to get it to f150 status.
If you want to wake it up a little either turn off traction control, put it into sport mode (double tap the traction control button), or hold down the traction control for about 10 seconds until advancetrac is off message is displayed to have nothing interfering with the power.