Please check out the following link for further discussion on the 02Pilot mod: https://www.bimmerforums.com/forum/showthread.php?1629018-Oil-consumption-after-CCV-replacement
You need about 2 ft of 3/32" ID vacuum line and about 6" of 1/4" ID vacuum line (or whatever line the 3/32" line fits inside of perfectly).
You should also purchase and install a 12mm non return check valve for your oil return line here: http://amzn.to/2emCgHz
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