O2 sensors, which one of these?

[drivemusicnow]

This site http://www.jcwhitney.com/webapp/wcs/...&storeId=10101

has a couple different types of O2 sensors.. is it the 3 wire one?? also, do you know of anywhere else that I could find them? just looking for 1 to replace the third sensor

[svx_commuter]

I have use dthe oem O2 on the SVX. Recently I replaced the O2 on the Impreza with universals. They do take some time to assembly, say about 45 minutes, so I may not do that again.