Holley EFI 558-433 Digital Dash I/O Adapter with Unterminated Vehicle Harness

The Holley EFI Digital Dash I/O Adapter (part number 558-433) expands the functionality of your 7-inch Holley digital dash by adding critical input and output capacity for advanced monitoring and control applications.

Key Features:

• Provides 10 additional configurable inputs/outputs for expanded sensor monitoring and control functions
• Includes unterminated vehicle harness for custom wiring integration
• USB memory stick included for updating digital dash firmware to support adapter functionality
• Features waterproof 26-pin connector design similar to Holley EFI system connectors
• Compatible with Holley 7-inch digital dash displays
• Enables connection of additional sensors, switches, and output devices beyond base dash capabilities

This adapter is essential for racers and performance enthusiasts who need to monitor additional engine parameters, control auxiliary systems, or integrate complex vehicle electronics with their Holley digital dash system. The waterproof connector ensures reliable performance in harsh automotive environments.