So I haven't been on here in a while due to recently moving to Las Vegas. I am currently at work and my system won't let me use the search function. I have a stock 2003 3500 5.9L, 92K miles, with a rebuilt tranny w/ a billet convertor. I was wondering what programmer you guys recommend if I am looking for increased MPG over everything else. It has the towing power that I need so my main focus is MPG.
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