fuel economy

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  1. Overland Commander

    What About Performance Chips?

    I know there is a wide variety of opinion... I upgraded my tires/wheels and a 2" lift. I was getting 20/14 typically on the lighter 32". After the upgrade to 33" Coopers its 16/12. In early testing, the mileage/HP chip I just installed looks like a 20% gain back in MPG. Yesterday's running...