FU chip and tire size - Power Hungry Performance Forum

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FU chip and tire size

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1999 to 2003 7.3L Power Stroke Diesel
7.3L Power Stroke Diesel equipped Super Duty and Excursion.

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Thu, April 7th, 2011, 07:10 PM

screagle07 screagle07 is offline

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Join Date: Apr 2011

Location: Sheboygan Falls, WI

Posts: 15

FU chip and tire size

I just ordered the chip. On the order form I listed 315/75 R16 as my tire size. What can I expect if I go back to the stock tires (265/75 R16) to improve my fuel mileage and will I have to have my re-program the tunes I load onto my chip? Thanks in advance for the feedback.

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