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Old 02-02-2013, 07:44 AM
wavewuver wavewuver is offline
Officially Welcomed to the 'Fest
Location: CT
 
Join Date: Sep 2003
Posts: 321
Mein Auto: 2011 X3
Quote:
Originally Posted by GTBecker View Post
The service manager here says this is normal, but couldn't explain why. I only see it on the right exhaust of my 2013 F25, and it wipes off very easily with a WD-40-soaked paper towel. Odd.
Usually one pipe carries the majority of the exhaust until you open her up some and then they both work.
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