Oxygen Sensor Bushing
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K&N Oxygen Sensor Bushing

Part No. 85-21688 Warranty  

Fit of this part varies by vehicle & equipment specs Type of Fit

K&N Air/Fuel Monitors and accessories are designed to help performance enthusiasts calibrate an optimum air/fuel mixture ratio. The monitor will work on carbureted, injected, supercharged or turbocharged engines using unleaded gasoline, alcohol, propane or nitrous oxide. It will not work with nitromethane or diesel fuels. Using the instrument to monitor the engine's air/fuel mixture ratio, a tuner can adjust for power, economy and/or improved drivability.
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