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Old 03-27-2012, 09:29 AM   #2
Registered User
Join Date: Jun 2008
Location: Chicago - Missing Madison
Posts: 148
My Ride: 04 IR/IR 6MT M3
looks nice but why catted? doesn't that kind of defeat the purpose of swapping headers? I mean I know you get a little better airflow but isn't the cat still restrictive even if they claim it to be "high flow"?
2004 E46 ///M3

3 pedals
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