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Air/Fuel Ratio Gauges

Correct air / fuel mixture is critical to achieving maximum power, efficiency, and engine life. The color of your exhaust pipe can only tell you so much! Air / Fuel Ratio Gauges tell you exactly what is happening in your engine, as it happens.

K&N Fuel/Air Ratio Monitor
K&N Fuel/Air Ratio Monitor
Wideband Air/Fuel Ratio Monitors
Wideband Air/Fuel Ratio Monitors
Oxygen Sensors
Oxygen Sensors
Oxygen Sensor Weld Bungs and Fittings
Oxygen Sensor Weld Bungs and Fittings

Recent Top Selling Products for this category

Wideband O2 Sensor Only (Bosch LSU 4.2) for Innovate
Wideband O2 Sensor Only (Bosch LSU 4.2) for Innovate

This Bosch LSU 4.2 Wideband 02 Sensor acts as an on-off switch signaling a rich or lean mixture. Gives a more linear response, accurately measuring mixtures as rich as 9.0:1 and as lean as pure air.

Stainless Steel Sensor Plug & Weld Bung for O2 Sensor
Stainless Steel Sensor Plug & Weld Bung for O2 Sensor

This stainless steel sensor plug and weld bung is welded into the exhaust pipe before the catalytic converter to hold an O2 sensor which measures the air/fuel ratio before the catalytic converter.

45 Degree Angle Oxygen Sensor Weld Bung
45 Degree Angle Oxygen Sensor Weld Bung

This 45 degree angle Oxygen Sensor Weld Bung allows you to have the oxygen sensor angled into the exhaust pipe instead of perpendicular which may reduce back-pressure and increase performance.