You can download this mod on the Steam Workshop here: https://steamcommunity.com/sharedfiles/filedetails/?id=2433702881
If you want to work on your own effects, you can either make a copy of the Workshop version. Or if you want to be working on the latest version, make a clone of this repository. Make sure to clone it into your local mods folder so you can test it without any hassle.
That folder can be found here: %USERPROFILE%\Documents\Teardown\mods\ This is where the game copies mods to aswell.
The documentation about this mod can be found here: https://github.com/NLferdiNL/Teardown-Chaos-Mod/wiki
You can find the repository for that here.
This mod started as an experiment for myself but quickly turned into something functional. Now this mod is a collaberation between dev behind the first Chaos mod for Teardown superfroggman and myself. With me working on the game code and him doing effects, and also researching if something cool is possible.
This mod is based on the Chaos mods from the GTA series.