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    Some help for a new member fuel mileage gone to hell

    Okay so I have a 2008 Tahoe LS Police Model, around 85000 miles! I picked up a Volant cold air intake, with ram air tube, and throttle body spacer. But now it seems my gas mileage has gone to hell, my throttle response sucks! And when approcing a small hill it seems if I was towing another...
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