Hyundai Tucson with GDI Engine - Transmission Issues? Or Plugged Catalytic Converter?

I am NOT a mechanic - I just like to figure things out when they stop working properly.
My wife’s 2018 Hyundai Tucson with a GDI engine was acting very weird, and according to the internet, the Catalytic Converter is the issue, even though it almost felt like a transmission issue. I found a cheap kit on Amazon, and set out to replace it myself to see if that was the actual problem.

***Spoiler*** It was the problem.

00:00 Intro
00:30 Symptoms
2:09 Back in the garage
2:42 Amazon Catalytic Converter Kit
3:14 Remove o2 Sensor
6:39 Unbolt Catalytic Converter
8:33 Unplug o2 Sensor
10:40 Cutting Catalytic Converter Off
10:51 Install new Catalytic Converter
12:50 Stubborn o2 Sensor
13:35 Final Installation
13:46 Test Drive
14:54 Conclusion

Видео Hyundai Tucson with GDI Engine - Transmission Issues? Or Plugged Catalytic Converter? канала Tyler Green