I am not a believer in those pre-set tunes.
A true tune is custom calibrated for your car on a dyno with top-tuning software such as HPTuners. I have been around the block to know personally the better gains and efficiency you get from a real tune.
I have ran several setups, and several tunes. Even bolt-ons will yield better results form HPTuners. I have gone all the way to transmission swaps to stroker 408 iron blocks with heads, cam, etc. Diablosport tuners, and the like, aren't for a true enthusiast. If you get those, you're settling, and you're not getting the power, or fuel efficiency that HPTuners will accomplish with a competent tuner.
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