Thread: exhaust
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Old 09-03-2008, 09:09 PM   #1
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Join Date: Aug 2008
Location: catonsville, MD
Posts: 271
My Ride: E46 323i

i got a AA tuning high flow cat and from the headers to the new cat is all stock pipes.
Should i upgrade them for more airflow and will it give it better sound?

beemteam1001 is offline   Reply With Quote
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