What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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Kyle Pezzetti

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Take your foot out of it and gas mileage will level off and go back up...;)

Well just drove around another 30 miles. Before the tune same rout same driving style I got 16.2 now I'm at 12.4. I may flash back to stock till I can get another map made
 

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