I have a 98 Cobra with a twin turbo which has the aftermarket H pipe. I am looking to install some cats and O2 sensors and get the car so it will pass emissions. The problem is that I don't know what was on the car from the factory as far as emissions. I am assuming the air pump pumps air somewhere--but where? I think the EGR valve is not hooked up either. If the computer can read that this stuff is there and functioning, it will pass since we have the OBDII test. Any help would be appreciated.