I did not buy any diffuser, cheap or expensive, you are mistaken. And I'm about to skip that mod. It's pricey and does not give any benefits.
Now about the oil can catch. It's like a hobby. I like to do something unusual on my car. I'm not looking for the easy way just buying the performance stuff. It's boring.
I bought already this item https://www.ebay.com/itm/Black-0-6L-...53.m2749.l2649
and I'll modify it in my personal way. The final result will be shown later when the project will be done. If something will go wrong I'll buy the catch can from NW. Not a problem.
Also I'm thinking to place the oil catch can in a different location.
Bought this Y shape connector to connect both hoses from valve covers and send one hose to the catch can. So I don't need 3-port oil catch can. Something like that
https://www.ebay.com/itm/1-One-3-8-N...53.m2749.l2649
More ideas are coming......