Got the ACM Exhaust mod done - Page 2

lacartus · 01-17-2013, 09:09 PM

I had this installed at ACM about a month ago and I have zero complaints. It's loud when I want to enjoy the sound and quiet enough to not bother me at other times. Drone is definitely subjective. I would say drone is minimal, so little that when I was on conference calls for almost two hours while driving between 60 and 75, no one noticed until I deliberately went WOT at the end of a call. If I had to guess, I would say ACM does this mod with no exhaust leaks and that's why drone is not an issue. Jay has done over a hundred of these and it shows in the quality of the cuts/welds.

AW750Li · 01-27-2013, 05:05 PM

Has anyone went to the dealer with this done? If so what did they say or do?

01-17-2013, 09:09 PM	#23
lacartus Blah blah blah Drives: M3 Join Date: Jun 2007 Location: NJ Posts: 133 iTrader: (0)	I had this installed at ACM about a month ago and I have zero complaints. It's loud when I want to enjoy the sound and quiet enough to not bother me at other times. Drone is definitely subjective. I would say drone is minimal, so little that when I was on conference calls for almost two hours while driving between 60 and 75, no one noticed until I deliberately went WOT at the end of a call. If I had to guess, I would say ACM does this mod with no exhaust leaks and that's why drone is not an issue. Jay has done over a hundred of these and it shows in the quality of the cuts/welds. __________________ Ian 2009 e90 MT

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01-27-2013, 05:05 PM	#24
AW750Li Private First Class Drives: 2008 SSII E90 M3, 2009 335xi Join Date: Mar 2011 Location: Long Island New York Posts: 119 iTrader: (0)	Has anyone went to the dealer with this done? If so what did they say or do?