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Custom Engine Management with Holley EFI

For custom engine builds where standard harnesses won't fit, the Holley EFI HP ECU & Unterminated Wire Harness Kit is the professional choice. This package provides the powerful HP ECU along with a universal, unterminated wiring harness, allowing you to create a clean, custom installation tailored exactly to your engine bay layout. It is the ideal foundation for unique engine swaps, experimental builds, or race cars requiring a bespoke electrical setup.

Technical Advantages

• Unterminated Flexibility: Allows for custom wire routing and length optimization.
• HP ECU Power: High-speed processing for complex fuel and ignition strategies.
• Universal Compatibility: Works with a wide variety of engine configurations.
• Advanced Features: Supports data logging, multiple ignition types, and sensor inputs.
• Professional Finish: Enables a clean, hidden, or custom-routed wiring installation.

This kit is designed for experienced builders who demand total control over their vehicle's electrical architecture. By utilizing an unterminated harness, you can ensure that every connection is exactly where it needs to be, reducing clutter and potential failure points. Whether you are running a custom turbo setup or a naturally aspirated monster, this Holley EFI kit provides the processing power and reliability you need to dominate. Find all your custom performance components at GGCRACING.