Terry you are correct and that is where I tapped in at, the line from the pressure limiting valves to the Turbo intakes. I used a catch can on each side. Due to the nature of our Turbo (sometimes pressurized intake) cars the Catch can have to be of the sealed type and not vented (that is one line in and one out without an atmospheric filter). These catch cans are almost as common as the vented type since there are so many Turbo & Supercharged cars out there. Mine collects a small amount of oil even with the use of Aces IV which also reduced the bypass oil a small amount.