30-0300 X-Series Wideband AFR Air Fuel Ratio Gauge Kit Universal AFR O₂ Sensor
 

X-Series Wideband UEGO Air Fuel Ratio AFR Gauge Kit

Part Number: 30-0300 | Universal For GM & All Vehicle Tuning

1 YEAR LIMITED WARRANTY | Complete Wideband O Sensor Tuning Kit

Universal Vehicle Compatibility

All GM Models: Chevrolet, GMC, Cadillac, Buick, Pontiac
Works with EFI & Carbureted Gasoline Race Vehicles
Supports Gas, E85 Ethanol, Methanol, Diesel, Propane, CNG
12V-16V Automotive Systems, Street & Track Racing Use

Core Product Features

Patented X-Digital Fast Response Wideband Control Technology
52mm Standard 2-1/16" Gauge Size, Ultra Slim Low Depth Housing
Large Digital Display, Auto Dimming, Customizable Readout Modes
Comes with LSU4.9 Wideband Oxygen Sensor, Wiring & O2 Bung Hardware
0-5V Analog & CANbus AEMnet Output For ECU Tuning & Data Logging
Pre-Calibrated Sensor, Optional Free-Air Recalibration Function

Key Tuning & Protection Benefits

  • Accurately monitor air/fuel ratio to avoid lean burn engine damage
  • Optimize horsepower, torque and fuel economy for GM performance builds
  • Real-time rich/lean readings for dyno tuning and street calibration
  • Prevent detonation, overheating and catalytic converter failure
  • Compatible with standalone ECUs, stock PCM and racing data loggers

Full Technical Specifications

Product Name Wideband UEGO Air Fuel Ratio AFR Gauge Kit
Part Number 30-0300
Gauge Diameter 52mm (2-1/16 inch) universal pod mount
Included Sensor LSU 4.9 Wideband Oxygen O2 Sensor
Supported Fuels Gas, E85, Methanol, Diesel, Propane, CNG
Output Signals 0-5V Analog, RS232 Serial, CANbus AEMnet
Warranty 1 Year Limited Warranty


On Jun 20, 2026 at 23:34:00 PDT, seller added the following information:

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