You need an O2 sensor or your PCM will go into open loop and throw an SES light.I have the one o2 sensor before the cat. Does anyone know if I can just delete this? Or is it just best to replace.
I can't remember what size the threads are, maybe someone else can chime in but, if you buy something like those JBAs, they come with a bung and plug. You can plug the bung in the header and put your O2 in the Y collector. I have a NBO2 in my header and a WBO2 in the Y for tuning but I'm running all the time on the WBO2 for now, just monitoring the NBO2.Plus the headers I received have a o2 sensor on the drivers side before the collector.( my truck manifolds did not) anyone know what thread size I need to block off that side?