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      04-01-2008, 11:15 AM   #123
tryangles
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Drives: 2018 X5 sdrive35i
Join Date: Sep 2007
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Quote:
Originally Posted by Appropriate View Post
Excuse my ignorance, but it sounds like this vacuum valve basically opens up the second tailpipe when additional volumetric exhaust capacity is needed... is that right?
I wonder if this is true because that would explain why one of my tailpipes has way more carbon deposits than the other.
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