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      10-08-2018, 01:31 PM   #2
triax37
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Drives: 2017 F31, 2014 F15, 2002 M3
Join Date: Oct 2016
Location: Denver, CO

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Pretty sure that's the PCV valve which is built into the $400 valve cover of 2007-2012 E90 N52 engines. Bumping to the top so that someone else can confirm...
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