BMW M3 Forum (E90 E92) - View Single Post - M Performance Exhaust With AutoCoutureMotoring (ACM) Test Pipes

dozaiya · 05-31-2013, 11:15 PM

i now officially regret selling my mpe

why previous setups of test pipes complain about rasp? sounds exotic and mean as hell
i'd think there's not much difference between acm and other test pipes?

05-31-2013, 11:15 PM	#6
dozaiya Captain 236 Rep 957 Posts Drives: 2011 MW E92 M3 Join Date: Nov 2012 Location: Shanghai iTrader: (1)	i now officially regret selling my mpe why previous setups of test pipes complain about rasp? sounds exotic and mean as hell i'd think there's not much difference between acm and other test pipes?
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