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foofopps · 01-13-2013, 02:20 PM

Berk midpipes are resonated, not catted. N54 guys swap to berk or N55 mids. So get a down pipe for power and if you want a more aggressive sound go with a cat-back that has a muffler.

01-13-2013, 02:20 PM	#3
foofopps Second Lieutenant 11 Rep 225 Posts Drives: e90 m3 Join Date: Jun 2012 Location: Chicago iTrader: (3)	Berk midpipes are resonated, not catted. N54 guys swap to berk or N55 mids. So get a down pipe for power and if you want a more aggressive sound go with a cat-back that has a muffler.
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