Holley 558-404 J4 Auxiliary EFI Wiring Harness for Dominator EFI Systems

The Holley 558-404 J4 Auxiliary Wiring Harness is designed specifically for Holley Dominator EFI systems, providing reliable electrical connections for enhanced engine control. Crafted with high-quality materials, this harness ensures durability and consistent performance in demanding automotive applications. Its precise construction supports seamless integration with Holley's EFI modules, facilitating efficient signal transmission and power delivery. The harness's compact design allows for flexible installation in various engine configurations, making it suitable for custom and professional automotive setups. Compatible with a wide range of vehicles utilizing Holley EFI systems, this harness simplifies wiring modifications and upgrades, reducing installation time and improving overall system reliability.

Features:

• Designed for Holley Dominator EFI systems

• High-quality construction for durability

• Supports seamless integration with EFI modules

• Compact and flexible wiring design

• Reliable electrical connections for engine control