I'm not staying with the CTIS, myself on my own machine, while I will keep it on one I am working on to sell. Even with new seals, I had trouble with leaking on the pipe thread and tube system.
There are some valve stem connectors used on the Sand Trail (ST) tires that connect to the small valve stem and have an o-ring fitting, so I don't think connecting to the ones above would be a problem with the CTIS, but might take some investigation.
I thought the ST control valve would make a nice replacement for the older style on the A3 also, but not that interested in trying. I'm happy with fresh paint, new oring and modern well sealed valve stem, than the modified pipe that is OEM... so leaks are minimized.
I'll see if I have the take out parts. Oh yea, I had a better way of plumbing that used a strong hydraulic fitting T and new SMC fittings with urethane tube. Copper or steel or SS tube can be used with the Oring fittings also, but you will have centrifugal forces to deal with.