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Hey guys, My grandpa has had is 2006 2500 4x4 dodge forawhile, and uses it to tow a 32ft 5th wheel camper. It is completely stock right now, but he is looking at things for better fuel mileage . I told him he should really get a EGT gauge and trans temp. because it is good to moniter that when towing... then maybe an exhaust. But he wants to only do things that will pay themself off...how long does it take to pay off a cold air and TBE? I can get a decent deal on the exhaust so that would be good.
anyadvice?
anyadvice?