Hey guys, some of you seen pics of the OBX header I posted on facebook. Okay here the issue I replaced the exhaust manifold with a header. I replaced my bank 1 sensor with a new one (oem) and I'm still throwing that code... I put a non Fowler to space out the sensor (used 2) and it's still throwing a cel. It usually kicks on after a day or 2, I need to get my inspection sticker, they wont pass it because I need to put about 100 miles on it to clear, but I can't because it will throw the code. I don't know if it's even caused by the header or is it something else? I know it's for emissions... I don't know what else to do.. any help is appreciated, thanks.