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      05-08-2015, 01:52 PM   #16
gclions
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Drives: 2011 550i
Join Date: Feb 2014
Location: Chesapeake, VA

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Did this mod in an Advance Auto parking lot a few minutes ago, stock exhaust so no real increase in sound, but the rattle on startup is gone.

The dealership replaced the driver's side muffler under warranty to get rid of the rattle on one side, but the other flap still rattled. So, if for no other reason this was an easy enough modification that got rid of a small annoyance with the car.

Thanks for the original post, but I'll leave wiring switches to the rest of you guys.
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2011 BMW 550 i / Sophisto Grey / BMS Stage 2
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