Truck Forums - Max Micro tuner for 5.3L help

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swipter

07-04-2006 01:14 PM

Max Micro tuner for 5.3L help

I was wondering if anyone has tried one of these. It boasts higher mileage. What mileage increase has anyone received from these? I get 15 around town and 17 on the highway for my Z71 with 4.10 rearend gears.

Thanks

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