'01 Chev. Tahoe 5.7L

To the AquaTune folks,
End of last month I bought two of your AquaTunePlus kits, one for my '01 Chev. Tahoe with the 5.7L Vortec engine. The other was for my wife's Suburban. This investment was well worth every penny! The first thing I experienced was the sharp increase in hp gains. The next thing I noticed was that I used to get 350 miles per tank of gas now I am getting 417, and that's with my foot into it!! One of these days I will calculate my mileage while driving normally. I will keep you informed and I'm telling everyone I know about this terrific product.
Thanks again,