So I have been piecing together a short ram intake for the Jeep because the 16 year old in me is telling me to. I also don't want a CAI because my commute takes me along some very poorly drained Boston roads, and I don't need to risk getting any more water into the engine than necessary. Plus I like the mechanical sounds that you can hear after you install one of these. And yes, I visited "THAT" aisle in Autozone. I felt old. So when I pulled apart the intake today, I found some oil just before the turbo: I looked into the tube and found a whole lot more oil. Kinda hard to see (i only had my cellphone and it was cold and windy) but it is there: There was a good sized puddle. I got the Jeep in mid January and have just over 5k miles on it, most of this is highway driving too. So I am a bit surprised at the amount of oil in there. My only other experience with a turbo vehicle was an Audi TT, and it didn't put anywhere near this amount of oil into the intake. A light film, yeah, but never a puddle. So along with installing a short ram, I made a catch can: I based it on the instructions found here: http://mazda3revolution.com/forums/...ld-ultimate-diy-oil-catch-can-under-50-a.html I had 90% of the stuff I needed for this, along with all the tools. It may be cheaper for you to go buy a catch can, instead of building one, if you don't already have the bits and pieces. The one thing I did different is I packed the tube with stainless steel wool. The fittings are brass 5/8" for the lines running to the catch can. This is the final result: I'm sure there is a tidier way to do this, but it was very cold and very windy today, and I wanted to be done. I also wanted the catch can accessible so I can easily drain it. There is enough hose for me to actually lift it out of the engine bay and over the fender. I gotta make a bracket for more support for the intake but it is resting where the stock airbox sits. Here it is with the engine cover on (yes, my inner 16 year old wanted me to paint the boring engine cover too): Whipped it onto the highway and around town. Rechecked all the connections when I got back. Everything ran great and no CEL's popped up. Will have to see if this affects gas milage in any meaningful way. The Jeep goes whoosh-shhhhpsshhh now! The parts for the short ram are all Spectre stuff: 3-2.5" tapered reducer 3" tube with vacuum ports 3" 45 degree elbow 3" 60 degree elbow 6" cone filter Threaded Brass fittings used: 5/8" for the PCV hose 1/4" for the other vacuum lines.