Holley - LS Coil On Plug Harness Universal

The Holley LS Coil On Plug Harness Universal (Part Number: HLY558-307) is a versatile ignition wiring solution designed to connect Holley HP or Dominator ECUs to coil-on-plug or coil-near-plug systems. This harness facilitates seamless integration with Holley PN 558-312 or factory GM LSx coil harnesses, ensuring reliable performance and compatibility across various applications. Key features include universal compatibility, direct connection capabilities, and compliance with Emission Code 3 standards, making it suitable for use on uncontrolled (non-emissions controlled) vehicles. The harness measures approximately 11.35 inches in length, 10.75 inches in width, and 3.8 inches in height, providing a compact and efficient wiring solution for your ignition system needs.