O2 Sensor Conversion Kit



2000-2004 tundra rear o2 sensor bung/conversion kit. this kit allows you to ‘convert’ your sensor from a bolt on style to a screw in, and it does come with bolts and a standard 18mm o2 bung. You weld on the bung into your exhaust system behind the cats, or behind where the cats are supposed to be. If running cats simply screw in the adapter and bolt on the o2 sensor. If not running cats this set up allows you to ‘stack’ spark plug anti fouler between the adapter and the bung which may keep off the check engine light


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