I don't have any picture right now, but I will try to put one later. I have scrapped multiple projects that involve cloning computers or ovens because I have no idea how to remove the extra effects, I mean, the small LED lights of the computer, or the red "gas" from the ovens...

This is what I mean:


picture credit to pickyvegan

Is there any way to change and/or delete such effects from my clone... or do I have to edit my mesh to fit with EA's effects?

Any help appreciated!

Uhm. I guess the RSLT has one or more slots for the special effects. You can try to delete it or move it inside the oven to hide it.
_RIG too may mention them, but I'd try with the RSLT only,
Not sure if this is completely safe: if you delete a slot and the game can't find it anymore it may be a problem.

If you import both the mesh and the .slot file into blender you can see exactly where the slots are placed
(if you can't guess it from the coordinates).

Usually special effects are triggered by animations, but I guess you don't want to make a custom animation
or override the existing one (or you will remove the effect even from normal ovens).

I'd like to know how it goes if you experiment with this.