ok the headers are installed, the prob is the O2 senor wires dont reach, so thats two O2 sensors that are not in.
the CEL is on (duh) and the car is sounding like total shit at 3,000rpms but it seems like that is where it is the worst at. even when i connect the O2 sensor will the car still sound like there is a major exhaust leak? the car only makes the sound while im driving.