How many Catalytic Converters does this car have?

Hello,

So, you have 2 catalytic converters. The primary converter is bolted to the exhaust manifold which is what they call a 3-way cat and a secondary cat which is down from the head pipe in the exhaust system. Here are the instructions on how to change them and their locations as well, can I ask what kind of problem you are having? Check out the images (below). Let us know what happens and please upload pictures or videos of the problem. Also, if you have codes, please include them so I can tell you which catalytic converter you need.

Of course! Thank you so much, and the code I'm getting is P0420.

Yep, that is a catalytic converter inefficacy code. I just wanted to make sure we were headed in the right direction.

Perfect, any way for me to determine on my own which one is bad?

You can do a temperature test which is the only way, they like to replace the cats as a unit. This guide can show you how. The code just tells of the problem they don't say which one it is.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please go over this guide and report back.