M18X1.5 135-Degree CEL O2 Oxygen Sensor Universal Adapter Extender Catalytic Converter Champoo

Fixed the p0420 code immediately

Get the parcel days before. I had a P0420 code pop up after installing some bad spark plugs that caused misfires. I decided to give this product a try. It's crucial to ensure everything else in your vehicle is working properly before installing this. For my setup, the straight design was perfect for the catalytic converter near the firewall. If I needed one in the front, it would have to be a 90° due to space constraints. Installation wasn't easy, but it fixed my problem. Highly recommend!

This adapter didn't seem to make much of a difference in my car's performance, and the check engine light still comes on occasionally.

if you're tired of dealing with cel issues, do yourself a favor and invest in these adapters—you won't regret it

I'm so glad I did. Not only did they fix my check engine light problem, but they also seem to have improved my car's overall performance.