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Bigjule1111 · 10-22-2020, 03:50 PM

I zip tied my m6 mufflers on my 640 .. I def get a nice deep tone when I step on the gas ..haven't had any issue with the ties coming off .. def get some drone in comfort mode ...so I just keep it on sport mode

10-22-2020, 03:50 PM	#5
Bigjule1111 First Lieutenant 36 Rep 313 Posts Drives: 2014 bmw640gc 2015Mercedes e40 Join Date: Aug 2019 Location: Philly - south Jersey area iTrader: (0)	I zip tied my m6 mufflers on my 640 .. I def get a nice deep tone when I step on the gas ..haven't had any issue with the ties coming off .. def get some drone in comfort mode ...so I just keep it on sport mode
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