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Original post by: Bryan Gagnon ,


I run the Bullydog tune and like others have said the power is awesome, i run mine on the power tune and i am seeing a 0.3-0.4 mpg increase, i have a w9 pulling a stepdeck, mostly heavy and machinery thats like a parachute in the wind, my last 30 day mpg is at 6.17... not bad for a truck with the aerodynamics of a brick pulling a parachute.