[Qmulus]

Originally Posted by Gelbster

There is a theory that you can upgrade the diaphragm (the part that rips!) with a superior one scavenged from a BMW AOS.
It would be a great diy to replace the cheapo OEM diaphragm with a piece of Viton or similar/better?
http://www.amazon.com/Fluoroelastomer-Durometer-Smooth-Finish-Backing/dp/B00CCGYGEG

I was thinking the same thing, although I have no experience with the BMW PCV system. It would be nice to have an AOS like the motorsport version, but with a replaceable diaphragm. Viton would be perfect as it is unaffected by oil and fuel.