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      11-25-2012, 04:23 PM   #4
631twentyeighteye
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Drives: 2010 130i MT
Join Date: Aug 2012
Location: Long island

Posts: 1,743
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I think down the line i'm just gonna have an entire custom exhaust made, straight pipe all the way through no cats or anything except maybe a high flow muffler or my PE muffler at the end.

which begs the question, does removing the cats cause any codes?
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