those damn sensors are really not cheap not even the cheap expensive i thought they might be.
pby after cat: borg warner $76.72
before cat: $69.99
advance auto
they only list the before cat, Bosch, lifetime mfg. defect warranty, $60 .
these kinds of expenditures aree not anything any DIY mechanic want to drop .. i understand these are self heating o2 sensors to bring theme up to temp quickly for better accuracy or reading or reduction of emmissions and better engine performance , but DAMN... $70 ! hell no !
