Features:

• Completely standalone with easy-to-read analog dial - Great for EFI or carbureted applications
• Includes Bosch LSU 4.9 wideband O2 sensor which is compatible with all fuel types (Unleaded, Leaded, E85, Diesel, or Methanol)
• Gauge reads in gasoline scale only
• Slim-style mounting requires very little dash space for installation
• 270° sweep pointer from 6 to 3 o’clock makes gauge easy to read at a glance
• Internal microprocessor controls the pointer movement to ensure accurate movement in street, off road, and racing conditions
• Adjustable LED warning light allows user to set both low and high trigger points
• Peak recall button allows user to view min/max gauge readings
• Gauge includes a 5 ft. 6-pin weathertight sensor harness and 4 ft. power/ground/lighting harness allowing for flexible mounting locations
• Spin lock ring threads to back of gauge case for simple and secure gauge mounting
• CNC machined billet aluminum bezels with anodized finish – Bezels are threaded for easy
• Multiple bezel options available separately – User can customize the gauge to their preference

About NOS

When you're looking to go fast, rely on NOS to deliver the most power per dollar available in the industry. Available on Holley.com!

• Holley EFI Oxygen Sensor

  For Sniper and Terminator X O2 Sensor

  Part# 554-155

  $147.55

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  Add To Cart

The following vehicles are considered Racing Use Only Vehicles:

• Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle