How to make a PCV oil catch can diy 8$ 

Where does the oil come in and where does it come out?

@@zaidm4242 the inlet side is where hi puts the metal scrap

Where does the oil come in and where does it come out?

@@zaidm4242 same question

@@zaidm4242 the target is to trap the bad oil deposits and not let it go back into the air intake to mess up the intake manfold as it will build up some gunks