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L99 Dyno Airaid/custom Magnaflow catback
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10-16-2010, 07:50 AM
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Slowhawk
Drives: 1999 Trans Am
Join Date: Jul 2009
Location: Bridgewater,Ma
Posts: 2,017
Street tune it. Making changes on the dyno doesn't help much for some reason.
Slowhawk
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