Originally Posted by
omgosh
I would buy a new wideband. Half the time when you get em used you gotta change the sensor soon after. They only last a couple years. Sensors run about $60-70 depending on the wideband..so even if you get it for $100 its gonna be $170 as soon as you get the sensor...AEM is nice and cheap at 180 but there are better options...just do some reading

I just sold my AEM for $100

The AEM sensor's are $70 new. SO $170 for essentially a new wideband isn't bad IMO