WTB B18c1 upstream o2 sensor

[sohcEX]

Need a upstream o2 sensor for a b18c1 motor must be new pm where you are located and how much

[RBS]

is that the one before or after the cat? i have both, pm me

[Barefoot]

upstream (sensor 1) is normally before the cat. down stream (sensor 2) after the cat.