FAST wideband air/fuel ratio analog gauge kits are ideal for monitoring the overall fuel tune of the engine, when daily driving or racing at the track--and make great tools to have where you need to monitor the efficiency of your engine. The FAST wideband air/fuel ratio analog gauge kits combine a super-fast and accurate gauge, a Bosch wideband oxygen sensor, harness, and a stand-alone sensor control unit and bung. These kits can be mounted anywhere inside the interior, gauge pod, or dash. They are also backlit for nighttime use, and can be wired so that they're powered up whenever the engine is running. Get the most out of your driving experience with FAST!

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