I thought this thread would be a good idea because lot of nikkas don't be fukking with the Showroom or whatever the shyt called. Also because I wanna know if anyone has ever driven on a bad Catalytic Converter?

I think mine is bad but don't want to replace it because the shyt is dumb expensive to do. I get mixed messages when searching how long you can drive on a bad one. Anyone dealt with this?
I'm pretty good with cars, so I can help with some shyt ya'll might be going through with your whips as well.