Three months ago i bought all four sensors from ebay and they worked fine. I logged into the car with my scanner and watch them in real time on a graph they were responding as expected. no more CELs I got them from http://www.ebay.com/itm/NEW-O2-OXYGE...item58a2795af5
oh the connectors are the right ones they plugged right in. FYI the passenger side on after the CAT is a pain to get you may have to remove the rear cross member and lower the trans on a jack to get to the connector. I changed all four in two hours or so.