Here what i wrote to another member from another forum to help them understand how it works.
"Here i took some more pictures for you. Both lines do not run back into the factory intake, or intake manifold. They both run straight to the catch can, guarantee that no oil blow by will ever go back inside of the intake. It is not like any system on the market right now. This method has been used for decades, they don't use it now because of emission purposes. To keep the car emissions friendly the factory run the pcv breather lines back into the intake manifold, but this also allows the oil to enter the intake and intake manifold and puddle. The open holes where the factory lines use to go on the intake has been blocked off."