it has a bung for the 02 sensor to plug into, but you have to wire up a MIL/CEL fix which is not hard at all.alprotege said:does this header comes witht he o2 sensor holes pre installed?
should not be a problemAuzzie_Mp3 said:with the MIL installed and no CEL or MIL light on will that pass inspections?
dosle said:the mil fix will trick the o2 sensor into thinking its all good so no code will be thrown.