what would be the best tuner for a 4.7l from 2003? I currently have no mods on the engine but just looking for better fuel economy.:smile:
thanks in advance
I have a Superchips that I got after my rebuild back in 2009. I think the model was 3715. I imagine they can still be found. Funny enough, I am not even running a tune anymore. It is just sitting in the toolbox. I only have 45, 000 miles on the engine since.
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