I've got the Superchips one & it does make a difference, but I'm only getting 16mpg on the highway unloaded with it.
Most of the time I'm running in performance-tow mode, not the full out performance mode.
It's a great truck - your going to love it.
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Some guys they just give up living
And start dying little by little, piece by piece,
Some guys come home from work and wash up,
And go racin' in the street.
Bruce Springsteen - Racing In The Street - 1978
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