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Old 06-15-2013, 07:46 PM   #2
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Join Date: Oct 2011
Location: Seattle
Posts: 975
My Ride: 2002 BMW 325i
It's a breather hose that goes to the "F" connection on the intake boot.

If i'm wrong let me know...but almost positive that's what it is. Good idea to replace it, I still have to, i used electrical tape as a temporary patch over a hole in the line when i did my filter.
FenderGuy05 is offline   Reply With Quote