[XnOVeNoM]

I recently removed my primary. I have the Jb4 with intakes. I was running map 2 with the jb4 just fine and when I removed the primary cats for more sound and some power but, when I give it some throttle it will go into safe mode at like 5 psi. I still have a check engine light for the o2 sensor and I was wondering if having that code for the sensor is not letting my car be able to full throttle again. I can drive the car fine until I want to give it some throttle and it will throw it into some safe mode where there is no power. What is the next step to fixing this problem?