hey guys, finally got my header and tried to install it today with Sabrelli's help (thanks again mate). Got it all installed, but realised right at the end that theres a bit of steel partially covering the bung hole for the 2nd o2 sensor, and as a result i can't screw in sensor at all. I'm gonna get a bolt tomorrow to fill in the bung hole.
Now since no aussies seem to be getting CELs from missing the cat, the o2 sensor just seems to have no purpose at all on our car. Do you think it would be ok if I DON'T plug the 2nd o2 sensor back in? (i.e. totally disconnect it from the ecu?) I'd rather not have the sensor just dangling in the engine bay.