Anyone use a DF-17 adjustable PCV?

Yep. I’m so glad I bought mine. I was ridiculed on this very site for a long time because I recommend everyone run a PCV valve AND they get the Wagner valve and be done with it.

Too many don’t know the difference between price and value.

I was frankly shocked at the directions supplied. I've never seen instruction so well written and laid out. Everything you need to know about the valve, setting it up and service parts. Defiantly done by an engineer/car gut buy easy to understand and follow.