How do I claim a replacement for a faulty AEM wideband O2 sensor?

If your claim is accepted, we do not need the sensor back. We ask you to: (1) write a code we give you (e.g. "R2021") on the sensor with a marker, (2) take a photo, (3) destroy the sensor (cut the wires or break it) and (4) take a second photo. Send us both photos and we will ship you a new sensor. This saves you the cost and time of returning the part.