I've ran diesels a long time and one of the first things I decided to do is install a catch can on my terrain. I went with a provent 200 can and after 500 miles I've removed quite a bit of water(condensation) from my crankcase. There is only one good spot to install this larger unit and you will also need 5' of 1" silicone hose that can be purchased at summit or online and a 1"x7/8" 90 silicone elbow that can be found on ebay. I kept the stock hose in the vehicle incase I needed to make a quick predealership change in the future. Took about an hour to install everything and I ran the oil drain out near the passenger frame rail with a 3/8" valve on the end so I can drain during oil changes. Pics attached.