Chinese mods

i have seen some people in the park with custom stuff thats not in the game
and i asked one of them and he sent me this pic
would like to know what is it and what does it mean and maybe where can i get it

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Everything you see is in the game. They just have a tool to unlock it. I was told the chinese super modifier tool is out so maybe that is it. I'm not sure. I hate 2K's online hiccups anyway.

i have seen some people in the park with custom stuff thats not in the game
and i asked one of them and he sent me this pic
would like to know what is it and what does it mean and maybe where can i get it

Did you find the way to get that?