The O2 isn't electrically connected or there is a hole where its supposed to be installed?
It needs to be installed to run properly so the ECU can adjust the fuel air mixture. It plays a large role in how the car runs, its the only thing that feeds back to the ECU when everything else sets up for whats going out of the motor.
Did the new headers bolt right up or did you have to grind anything?
Im also thinking of getting OBX's, my pace setters had to be heavily modded to work and I think ceramic coating will be better than my wrap job.
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