Just a word of advice, if you read that you need to run 2 catch cans for it to be "right", dont pay attention to anything else that person says and leave the page you're reading lol

I ran a catch can on my car and I had no oil in the intake or IC pipes. To do it right you should get a vacuum pump. It can be a bit expensive but you'll help the engine last longer and it will free up some power.