mileage difference
So maybe I can get help on this. Im shure Its been posted. I am very happy with my gryphon so far. But as of late it seem like the /87 performance program I got does not seem to be cutting it. Flat spot in accelerator, and seems to go into overdrive alot more.and the gas mileage never went above 13 in the city! ... but maybe its me!. I dont know.. So I tried the regular 87 tow .. and wow what a difference!! ????? got a better responce and I am already up in m.p.g's . I went from 23.4 average m.p.g to 13.4 mpg's... could i be wrong? can the stock tube be better than the custom one I bought..... Moderators?? Bill? Corey? JnJ/? what you think
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