interesting. assumed the big black box was the cat converter, not a muffler. I’ve got the cat eliminator sitting in the box and haven’t looked at fitment yet but assumed it just replaced the black box, not what the diagram refers to as the cat converter cpl. btw, anyone know what cpl stands for?
update, just opened box and it looks to replace both parts. Cat converter cpl and big black box. This is the competition werkes cat delete.