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      11-26-2012, 10:15 AM   #8
Riley1524
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Drives: A Slow Ass BMW
Join Date: Feb 2011
Location: Atlanta, Ga.

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Quote:
Originally Posted by 631twentyeighteye View Post
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?
Yes, taking out the cats would throw codes without proper ecu coding/ tuning. Gains would be pretty great though
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2009 328i E93: Sport suspension, Carbon fiber performance spoiler, Lux AE's, K style carbon fiber front lip spoiler.