I wanted to add a silicone sock to the hotend of the JGAurora Z603S but the existing fan feed was too big and in contact with the silicon sock.
This would cause the fan piece to melt.
I decided to design another piece that was set a few mm back so that it would no longer touch the sock.
You can try this is you have a JGAURORA Z603S to see if it works for you. Obviously so close to the hot end, you should use ABS if you don't want this to melt on you.
If you print it the way it is laid out in Cura, you should not need any supports. If you have adhesion problems, you can try a brim, but I never had to in my current setup.
Up to you
Note that I have not checked if the air flow works the same way as the old one beyond a few prints that appear slightly smoother at the top layer but I can't tell if this is because of the Silicon sock.
Note that I print extensively with PETG and small bits tend to stick and to the hotend as PETG is very stringy - the sock eliminates this. I switched to ABS for this print as it tends to get very warm so close to the hotend.