The Ultimate Solution for Custom EFI Installs

For builders tackling complex engine swaps or unique custom projects, the Holley EFI Universal Unterminated Main Harness is the foundation of a professional-grade engine management system. This kit provides the high-quality wiring and connectors necessary to build a custom harness tailored exactly to your engine bay layout, ensuring a clean and efficient installation for any Holley HP or Dominator EFI setup.

Unparalleled Customization

• Unterminated Design: Offers complete freedom to route wires exactly where they need to go, perfect for custom engine bay configurations.
• High-Quality Components: Constructed with professional-grade automotive wire and shielding to prevent signal interference and electrical failure.
• System Versatility: Fully compatible with both Holley HP and Dominator ECU platforms, allowing for scalable performance builds.
• Simplified Integration: Includes the necessary high-quality connectors to ensure a secure and reliable connection to your engine sensors and actuators.

By using an unterminated harness, you avoid the clutter of excess wiring and ensure that every connection is optimized for your specific application. This is the preferred choice for professional engine builders who demand perfection in every detail of their wiring harness. Whether you are running a turbocharged classic or a modern racing engine, this harness provides the electrical backbone you need. Elevate your build with high-performance parts from GGCRACING.