Here's an update of my car:

Installed new header, o2 sensor, and catback system. It doesn't bog as rough anymore. However, it still backfires and bogs, and I'm getting more check engine codes! Before I was getting CODE 12, and CODE 1. Now I'm getting CODE 12, CODE 1, CODE 17, and CODE 43. I'm stomped. Does anyone have a process how to troubleshoot these codes?

Cheesyrex