HOTSYSTEM is a professional seller for providing creative design and competitively priced automotive gauges with an extensive variety of styles and options,such as Air/Fuel ratio,Exhaust Gas,RPM,Turbo Boost, Oil temperature,Oil pressure,Vacuum,Voltage and Water temperature etc.
And this 7 Color Air/Fuel Ratio Gauge monitors your vehicle’s air/fuel ratio from 10.0 to 20.0, as well as allowing you to tune your vehicle’s air to fuel ratio, resulting in multiple benefits. These benefits include maximized power and engine performance, reduced emissions, and higher fuel economy by allowing you to carefully map out your vehicle’s air to fuel ratios throughout the range of RPM and manifold pressure.