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Need advice on G Force Chip
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09-07-2013, 05:15 PM
glennf1
Hummer Veteran
Join Date: Nov 2011
Posts: 163
Re: Need advice on G Force Chip
Most chips also just advance the timing a few degrees. This acutally does increase gas mileage and power but if you do the math it would take years to pay for the chip with the savings.
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