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Old 05-19-2009, 09:36 PM   #14
Scooby Newbie
Member#: 142754
Join Date: Mar 2007
Chapter/Region: MAIC
Location: Virginia
2009 Forester XT


I would not worry about flow on any aftermarket cat. I would worry if the cat will heat up enough for your O2 sensor to work properly.
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Rocketjones is offline   Reply With Quote