I have an 03 Chevy 2500HD. I'm looking for more low end power without getting crazy or totally killing fuel mileage. I have a 10,000 lb camper i pull thru the big hills in Pa.

Asked by Aug 30, 2013 at 08:12 PM about the 2003 Chevrolet Silverado 2500HD

Question type: Car Customization

2 Answers

107,705

You could try a computer reprogrammer like a Jet, Hypertech , Diablo ones like that or you could lower your rear end ratio, but that will start really killing mileage.

Best Answer Mark helpful

Thought about it. Gears are already too high. About 2350 at 65mph. Thought about an adjustable programmer but never had one.

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