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Ontario, Canada | I wouldn't really say there are too many down falls. If you ever sell the truck or trade it in everything can be switched back pretty easily. Truck will run much better with improved power, mileage. 1-2 mpg would be on the low end of the gains guys are seeing around here. I would be selective on what brand of tuner you use, some work better than others as far as performance, also run cleaner (less smoke).
Edited by combinekid 11/16/2012 07:06
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