BMW M3 Forum (E90 E92) - View Single Post

GTM_Challenge · 10-20-2011, 01:23 PM

I havent yet heard any with out Street X pipe. It does keep the primary cats, so id say you have a much better chance of not seeing as much rasp. The M perf. exhaust is a nice unit though

10-20-2011, 01:23 PM	#5
GTM_Challenge 272 Rep 2,946 Posts Drives: E46 M3, E90 M3 Join Date: Jan 2010 Location: Nashville iTrader: (7)	I havent yet heard any with out Street X pipe. It does keep the primary cats, so id say you have a much better chance of not seeing as much rasp. The M perf. exhaust is a nice unit though
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