Wow. 33 pages of posts. After reading almost all of them, today I ordered a Damond Motorsports kit with the protective hose sleeves for my 5 day old 2017 car. I always like to make sure things are in stock before I order them so I e-mailed Damond Motorsports and got an answer back almost immediately. I was told if I got my order in before noon Central time (about 3 hours later), they would get it shipped out before they left early today to attend a car meet. I had my order in to them in about 3 minutes, maybe less. I have read and heard about the potential valve build-up issues with direct injection motors for a long time, with some manufacturers even doing both direct and port injection together. While the catch can is not inexpensive, I'm thinking it is money well spent if it helps. I'll never know for sure because I don't know how the valvetrain would look without it, but it gives me peace of mind.