Holley EFI Main Harness — Universal MPFI Engine Wiring Kit

Watch in action

Reliable Wiring for Universal MPFI Applications

The Holley EFI Universal MPFI Main Harness is designed to streamline the wiring of your multi-port fuel injection system. Whether you are upgrading an older engine or installing a new EFI setup, this harness provides a robust and reliable connection between your Holley HP or Dominator ECU and your fuel injectors, sensors, and ignition components. It is the ideal choice for enthusiasts looking for a straightforward, high-quality wiring solution.

Key Performance Features

• Universal MPFI Compatibility: Engineered to work with a wide variety of multi-port fuel injection setups, making it a versatile choice for diverse engine builds.
• Optimized Signal Path: High-quality shielding and wiring ensure that your ECU receives accurate sensor data for precise fuel and spark control.
• Holley Ecosystem Ready: Designed for seamless plug-and-play operation with Holley HP and Dominator EFI systems.
• Durable Build Quality: Built to withstand the rigors of high-performance driving, featuring heat-resistant insulation and secure, weather-tight connectors.

This main harness reduces the complexity of your engine management system, allowing for a cleaner engine bay and more reliable operation. By utilizing factory-style connectors and high-grade materials, you can be confident that your EFI system will perform consistently under all conditions. Don't let poor wiring hold back your engine's potential; upgrade to a professional-grade harness today. Find the best selection of performance engine management components at GGCRACING.