my situation with o2 sensors

[Hus5LaH01]

I have a situation, I got a bosch o2 sensor for my ride, i know i know, i heard some bad #### abou them, but i got it anyway. So I took my car to get smogged and it didnt pass, the reason? too much gas is goin through my car, something like that. Anyway, i was wondering what you guys sugguest for o2 sensors and where can i get it?PLEASE HELP ME!

 

[brokegsx]

Try this Place

http://www.partznet.com/dsmpage3.html