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02Silv -> Whats a good Power Programmer?? (4/19/2008 8:11:57 PM)
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I have a 2002 silverado Z71 4wd, w/ the 5.3L and an Auto Trans. What is a good chip or module to buy. I dont want one where you have to run some high octane gas or something that totally ruins my MPG. I dont mind loosin a few MPG for a few extra HP's.
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