Holley 558-104 Main Harness for MPFI EFI Systems, Universal Fit

The Holley 558-104 Main Harness is designed for universal use with Multi-Point Fuel Injection (MPFI) EFI systems, including the Holley HP and Dominator series. This wiring harness provides a reliable connection for engine management, ensuring optimal performance and easy installation. Made from high-quality materials, it offers durability and resistance to heat and vibration, making it suitable for a wide range of automotive applications. The harness features multiple connection points to accommodate various sensors and actuators, simplifying complex wiring setups for performance vehicles and custom builds. Its universal fit ensures compatibility across different engine configurations, providing flexibility for custom EFI installations. Whether upgrading an existing system or building a custom setup, this harness is an essential component for achieving precise fuel management and engine control.

Features:

• Universal compatibility with Holley HP and Dominator EFI systems

• Designed for Multi-Point Fuel Injection (MPFI) applications

• Durable construction with heat and vibration resistance

• Multiple connection points for sensors and actuators

• Simplifies complex wiring for custom EFI setups