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Old 12-17-2012, 10:17 PM   #9
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Join Date: Dec 2012
Fan#: 107435
Location: Morgantown, WV
What I Drive: Boosted zx3

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Sleepy has it right, tune before AFR gauge. Narrow band is pointless on the stock tune. Boosted, you will see differences of course. But not N/A. Widebands are always nice to have.
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