Quote:
Originally Posted by BMWOO7
What type of exhaust are you going with? I have an '11 535i M-Sport and was thinking of changing out the exhaust to something a 'little' more aggressive.
I was actually wondering if the '11 550i M-Sport exhaust would retrofit, with a change of the rear diffuser.
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No sure..haven't taken delivery yet but during the test drive that was the first thing i noticed..lack of aggressive sound. Thinking of removing resonator and going with straight pipes (any muffler shop can do ) or if some aftermarket has an x-pipe. Otherwise just swapping out the mufflers...not sure though how many aftermarkets tuners have them out yet. And what about this flap i am reading about???