2-1/16" CAN-Bus Boost/Vacuum Gauge | 30 inHg / 0-30 PSI with Warning | Holley EFI

Holley EFI CAN-Bus Boost / Vacuum Gauge pulls manifold pressure data directly from the Holley EFI ECU through the CAN network for a cleaner install with no vacuum lines or external sensors required when supported. Built for seamless integration with Holley EFI systems, it delivers real-time boost and vacuum data while keeping the setup clean and straightforward. A precision stepper motor keeps the needle smooth, stable, and accurate at a glance, while a warning light adds a clear visual alert when boost or vacuum reaches your set point. Daisy-chain capability makes it easy to run multiple gauges on the same CAN network. Built for long-term use, it’s made in the USA and backed for life.

Key Features:

• Direct ECU Boost / Vacuum Data — reads manifold pressure directly from the Holley EFI ECU through the CAN network
• No Vacuum Lines Required — eliminates added vacuum lines and external sensor wiring when supported
• Holley EFI Compatibility — built for seamless use with supported Holley EFI systems
• Daisy-Chain Capable — supports clean multi-gauge installations on the same CAN network
• Warning Light — clear visual alert when boost or vacuum reaches your set point
• Microprocessor-Driven — real-time accuracy
• Stepper Motor Precision — smooth, accurate pointer movement
• Made in the USA — backed by a lifetime warranty