heads up, i had my cat stolen and its better to park it and get a rental or uber for a couple days. without the o2 sensors doing their job, the car will overfuel and can damage internal components if driven too far. I bought the amazon cheap replacement cat and it was here pretty quickly. around 300$ if your trying not to get insurance involved. Granted, its definetly not the same quality as a factory catalytic convertor but its worth it for at least a few years. just my thoughts on it. good luck.
Edit: link (cheaper than i thought)