BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - found out something interesting about the 1M exhaust...

MDORPHN · 12-12-2014, 08:22 PM

Only way to get rid of it -- as opposed to simply dampening the noise a bit -- would be with a tuned helmholtz resonator.

Some very high end exhausts (perhaps Akrapovic) have them as integral part of their systems.

Neil

12-12-2014, 08:22 PM	#73
MDORPHN Colonel 291 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	Only way to get rid of it -- as opposed to simply dampening the noise a bit -- would be with a tuned helmholtz resonator. Some very high end exhausts (perhaps Akrapovic) have them as integral part of their systems. Neil
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