Narrowband Air/Fuel Ratio Gauges

GlowShift Narrowband Air/Fuel Ratio Gauges help you closely monitor your engine’s air to fuel mixture by displaying Rich, Optimal and Lean values with the option of digital or analog readings. By making sure your fuel is being mixed with the right amount of oxygen, your vehicle will experience benefits including better performance, less emissions and higher fuel economy. Each narrowband gauge connects to a vehicle’s stock narrowband O2 sensor with the color coded wire harness that is included as part of this gauge kit.