00 sierra, where do i start?
04-10-2007, 09:04 PM
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00 sierra, where do i start?
i want to get some more power out of my 4.8, im getting about 18 mpg, only mod i have done is dual flowmasters, i would like to tune it, but dont know where to start, whats near okc?
04-11-2007, 08:19 AM
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i almost bought a 7.4 liter out of a wrecked 04 1 ton, and was gona swap it with my 4.8, but i hear they dont last long and have alot of problems, i dont have much money, in college, right now i would like to just do a tune for better fuel economy
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