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2.5" or 3" exhaust?
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02-21-2010, 02:35 PM
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chevyss
SS/RS
Drives: 2010 SS/RS IOM w/blk stripes A6
Join Date: Jun 2009
Location: Eastern Washington
Posts: 816
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Gosh, if your going to do it, the 3" is the way to go. I know the ARH long tube and 3" back to the axle has really been great for mine. I also added the Airaid CAI kit and that too made a big difference
chevyss
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