Bruce Nunnally Posted February 11, 2017 Report Share Posted February 11, 2017 Need To Confirm Location. Of Bank1 Sensor2 Precast O2 Sensor 1997 4.6L 32 valve NorthStar V8 On Exhaust B4 Catalytic Converter. Or After Y on NorthStar 4.6L 32valve V-8 NorthStar On Straight Pipe. Quote Bruce 2016 Cadillac ATS-V gray/black Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
barczy01 Posted February 11, 2017 Report Share Posted February 11, 2017 before converter Quote Link to comment Share on other sites More sharing options...
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