I needed to replace my a-pipe (lower-portion of my header, the collector portion). And the one I got doesn't have an 02 bung, but it is reportedly from an 1998(obd2) car.

For a better visual, it is missing one, before the cat.

Is this an obd2 a-pipe, or have I been misled.

I was under the impression that all obd2 setups had two 02 sensors, one before the cat, and one after.

Luckily, my ecu is obd1

-PHiZ