I made my own tip in a hurry just to see if it was worth it.
Ugly welds but the sound is so much better and the power on the bottom may have improved a bit but that is only my butt-dyno readings.
Even if you just want a better sound DO IT.
Me either until someone posted in the 700 FB group about their screws backing out and someone else mentioned the high temp stuff. Probably work ok with normal blue loctite, but cant hurt to use the red. Except maybe the pocket book