Route crankcase breather after air filter?

I went with a cheapy Home Depot kind. I made it fit myself. It was for an air compressor & it works fine. Should have gotten a larger one though. I think I spent $25 total for the fittings & hose I needed to make it work, but you can get one from Summit anywhere from $100 to $300. Some are even vehicle specific, with mounting brackets & everything. Your choice.