02-07-2011, 08:19 PM | #1 |
Registered User
Join Date: Feb 2011
Location: dewitt iowa
Posts: 7
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Increase mpg
OK here is my question I want to get more than 16/gal out of my 2008 Silverado LS with 4.8. I thought of a power programer. Do they work? Asked my mechanic he says it wil fry my computer, dealer customer service says it will void my warrinty, Lots of questions anyone have any ad ice?
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