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  • STM Rear O2 Sensor Spacer
  • STM Rear O2 Sensor Spacer

    STM Rear O2 Sensor Spacer

    PART# STM 42002
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    $ 8.00

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    STM Rear O2 Sensor Spacer

    Just screw your rear o2 sensor into this, spacing the sensor further from the exhaust flow... Making it think your cat is functioning properly.

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