4-1/2" CAN-Bus Speedometer | 160 MPH | Holley EFI

SKU: FHO45-S3-HLY
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$318.56 USD
Monitors vehicle speed directly from the Holley EFI ECU through the CAN network. Eliminates transmission sensors and drivetrain signal wiring for a cleaner install. Precision stepper motor delivers smooth, accurate speed readings.
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Order leaves our facility in about 2 Weeks
⚠️ Required: Holley EFI Gauge Module (Part 554-130) is required to connect the gauge to the ECU (View on Holley.com).

Holley EFI CAN-Bus Speedometer reads vehicle speed directly from the Holley EFI ECU through the CAN network for a cleaner install with no transmission sensor or extra drivetrain signal wiring required. Built for Holley Terminator, Dominator, and Sniper EFI systems, it delivers real-time speed data while keeping the setup clean and straightforward. A precision stepper motor keeps the needle smooth, stable, and accurate at a glance, while daisy-chain capability makes it easy to add multiple gauges on the same CAN network. Built for long-term use, it’s made in the USA and backed for life.

Track-Tested. USA-Built. Backed for Life.

Key Features:

  • Direct ECU Speed Data — reads vehicle speed directly from the Holley EFI ECU through the CAN network
  • No Speed Sensor Required — eliminates transmission sensor and drivetrain signal wiring
  • Daisy-Chain Capable — supports clean multi-gauge installations on the same CAN network
  • Holley EFI Compatibility — works with Holley Terminator, Dominator, and Sniper EFI systems
  • Microprocessor-Driven — real-time accuracy
  • Stepper Motor Precision — smooth, accurate pointer movement
  • Made in the USA — backed by a lifetime warranty
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Built to last. Backed for life.
  • Lifetime warranty on internal circuit board electronics
  • 5-year coverage on sensors and wiring
  • Applies to gauges purchased since Jan. 1, 2006

Every Speedhut gauge includes a lifetime warranty* on the electronic circuit board inside the gauge case. It is the core of the gauge — the part responsible for the precision communication that delivers the accuracy and performance Speedhut is known for.

Sensors, wiring, and other external components are covered by an unlimited 5-year warranty.

This combined lifetime / 5-year warranty applies to the original purchaser.
*For your lifetime — as long as you own the gauge — we stand behind it.
Speedhut Inc warrants products to be free from defects in materials or workmanship. This warranty is limited to repair or replacement. Speedhut Inc is not responsible for incidental or consequential damages. Improper use, installation, or unauthorized modifications void this warranty.
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