So, I started using McClarence’s and recently unlocked the duplication options.
At first I was just thinking that what Jason said was 100%, but apparently if we duplicate the predator suit it comes with all it’s legendary effects installed.
Testing it out with another suit(Gravitas) added through CC, it seems like since they aren’t part of original game duplication comes with all mods intact.
Edit:
Although with the base game Starborn suits, it removes all legendary effects, as you can see in the picture.
