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i had a hypertech when i got it dynoed the A/F was nice at the top end but below 4k on the tach it ran exteamly lean i would recomend a diablo flash tuner anyday. by the way i have a hypertech flash tuner if u want to buy one lol
I had a hypertech and I was not impressed. I have a 1997 gt. my friend also bought a hypertech for his truck and was not impressed. so I would go with the diablo I have never had one but that seems to be a favorite.