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WhyGeeGee · 08-06-2012, 01:38 AM

You can check AC Schnitzer or Hartge but don't expect them to sound very loud on the 640i but they are better than stock or you can go with ///M performance sport exhaust.

08-06-2012, 01:38 AM	#3
WhyGeeGee Second Lieutenant 21 Rep 280 Posts Drives: 2014 M6 GC , 2016 X5M Join Date: Mar 2012 Location: Qatar iTrader: (0)	You can check AC Schnitzer or Hartge but don't expect them to sound very loud on the 640i but they are better than stock or you can go with ///M performance sport exhaust.
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