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i have a 89 Chevy 2500 with a 350 TBI and the o2 sensor is on the driver side exaust header where the 4 pipes run into 1 from there follow the wire to its harness/connection- i don't believe it has the original passenger exaust header so i am unsure if it comes with an o2 sensor on each side?? happy hunting :)
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∙ 12y ago
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