Wideband 52mm Air/Fuel Ratio Gauge (G2-99-0055)

Grams Performance & Design
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Wideband Air/Fuel Ratio Gauge by Grams Performance

For optimum power and safety, measuring your air/fuel ratio is imperative when tuning. The Grams Wideband Air/Fuel Gauge measures at 52mm (2.047”) with an LED display that features a 3 color sweep from red, yellow to green. The Grams Wideband utilizes the latest Bosch® 4.9 LSU sensor that displays an easy to read 4 digit display with speedy accuracy down to 0.001.


  • 52mm (2.047”) Gauge Housing
  • 0-5v analog output (10-20 AFR)
  • Bosch® 4.9 LSU sensor with weld-in bung included
  • Accuracy down to 0.001 with a 4 digit display
  • Display output from 10:1 to 20:1 AFR
  • LED Display w/ 3 Color sweep from red, yellow, green


  • Universal

What's In The Box?

  • 1 - 52mm Wideband AFR Gauge
  • Necessary Wiring and Hardware



Grams Manufacturer's Warranty

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