2.4l ecotec

I haven't seen anyone post a catch can setup for the 2.4L Verano. I am interested in setting one up because I noticed oil building up on the valve cover of my engine around the PCV hose. I think that a catch can will be able to mitigate any contaminated oil re-circulating and making its way to...

I noticed some oil building up on top of my engine, so I cleaned it up to get an idea of where the leak is coming from. I looks like its coming from a hose going into the engine. Does anyone know what this hose is for and what is wrong? There are 3 pictures attached: (1) oil buildup before...

Just a little bit ago I chopped the mufflers off, has a good deep sound to it. Good gurgle going down past 3k rpm. Sounds louder in person than the video. I reccomend for 2.4L Video is private password to see is Buickregal