So right now we are in Idaho Falls and getting ready to go through Yellowstone. I just have to say the chip keeps impressing me. Driving from Reno Nevada to her I averaged 20.4 mpg doing between 70-75  and egts where in the the 600-650 range. That is a 3-4 mpg increase and if this keeps up the chip will pay for itself. I do notice the truck runs a little different at altitude though but it is still bad ***. 
Thanks
Joe
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 2003 4x4 F350 Super Duty Crew Cab Short Bed
4" Down pipe and exhaust, Wicked Wheel, Modified Exhaust Turbo Housing, Big Head Waste Gate Actuator, PML Transmission Pan, Factory Tech Valve Body, Autometer Gage Pod, PHP FU2 Chip
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