I need to get the o2 sensor for bank 1 sensor 1 would that be considered upper right? because bank 1 is upstream and the right being closest to the firewall?
http://www.ebay.com/itm/120756966310?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
http://www.ebay.com/itm/120756966310?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649