Definitely Eissenmann.....they manufacture the quiet factory stock mufflers and have a nice polished or black option which sounds louder than stock but not over bearing. Shop around and get a discount. (watch the youtube video, sounds sick)
Some other guy on the forums cut the stock by-pass valves and welded them to his Eissenmann catback. Smart idea!
Am I the only crazy person who thinks the Akra's are a rip off for the price? You can have a true mandrel bent exhaust made from the down pipes to the X-pipe to mufflers and tips for about the price of just the Akra catback.
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2014 M5...AMS downpipes, BMS tune, lead foot
2011 X5M....Downpipes, exhaust, dyno tuned
2008 Ducati 848....pearl white, Termignoni exhaust
CLS55 and C6Z06 (previous rides)
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