What's the deal with these? I've seen some honda engines with small filter located right on the valve cover instead of having a tube leading to the intake. Does this do anything performance or filtration wise? I would think so, since that hot crankcase air wouldn't be going into the otherwise "cold" intake. Thanks in advance for any input.

 

i think engines with that filter on looks ridiculous since your sucking in hotter air than you would if it was directly connected off the intake.

 

If you see anyone with a valve cover breather and they don't have a turbo setup. Slap them in the face, then kick them in the crotch.

There's plenty of information out there if you would just search for it. :wtcslap:

 

Haha lol. Will do.

 

I agree that they are not necesary, but it doesn't matter what the temperature is since it isn't going into the cylinder.