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Air/Fuel Ratio Gauges and Accessories

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.

Recent Top Selling Products for this category

Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled
Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

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.

MTX-L PLUS Wideband Air/Fuel Ratio Gauge, Digital
MTX-L PLUS Wideband Air/Fuel Ratio Gauge, Digital

The MTX-L Plus Wideband Air/Fuel Ratio Gauge combines the accuracy of a digital gauge with the instant recognition of an analog gauge via a digital LED readout plus a 270-degree sweep "digital needle".

Wideband O2 Sensor Only (Bosch LSU 4.9), for AiM LCU-One
Wideband O2 Sensor Only (Bosch LSU 4.9), for AiM LCU-One

This genuine Bosch wideband O2 (Lambda) sensor is the direct replacement for the sensor supplied with the AiM LCU-One Lambda Controller.