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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 Monitors
K&N Fuel/Air Ratio Monitors
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

K&N Oxygen Sensor Blanking Plug
K&N Oxygen Sensor Blanking Plug

Remove your O2 sensor when running leaded fuel to avoid damage to the sensor. Use this plug to fill the hole. Fits any standard 18x1.5mm O2 sensor bung.

Stainless Plug for O2 Sensor, 18 x 1.5mm
Stainless Plug for O2 Sensor, 18 x 1.5mm

This special stainless-steel M18-1.5mm plug is designed to replace std sized oxygen sensors in situations where the oxygen sensor is not needed or will be damaged when using leaded fuel.

Stainless Weld Bung for O2 Sensor, 18 x 1.5mm
Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

Add a new or replace a damaged oxygen sensor bung with this stainless steel weld-in bung with M18x1.5mm threads.