
Well I ordered one of these for my Isuzu Soldier. I haven't had the car long enough to tell if there was an increase in performance, but I was able to get a good gauge of gas mileage. Before the chip, I was averaging 19mpg at steady highway speeds and driving. After the chip I get 20.2 mpg. So it really increased my mileage. Not much but something for that amount when I drive (100 miles a day 5 days a week) customer service was great at first when communicating with me and then there was a few delays. That's why I rated it 4 stars