Grams Wideband Gauge Kit w/ Bosch LSU 4.9 Sensor

Grams Wideband Gauge Kit w/ Bosch LSU 4.9 Sensor

Item# G2-99-0055

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. The Grams wideband air fuel gauges feature a 0-5v output for closed-loop feedback when pairing with a standalone ECU. This 0-5 volt output can be used with any of our engine management setups / ECU's (Crome, Neptune RTP, Hondata S300, KTuner, Kpro, etc) for accurate air/fuel readings when tuning!


  • 52mm (2.047) Gauge Housing
  • 0-5v analog output (10-20 AFR)
  • Bosch LSU 4.9 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

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