I concede that it might be possible for this Dynovalve to work as advertised. However, I'd have to test it myself in order to be sure, one way or another.
It might well be a more aggressive form of PCV valve, and it might actually induct air through the engine itself. If so, it could effectively partially bypass the throttle body, which would reduce pumping losses somewhat.
But it does have a whiff of unicorn-ness, though.
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