Holley J4 Connector

Holley J4 Connector – Add I/O to Holley Dominator ECU

This Holley J4 connector allows you to add additional inputs and outputs to your Holley Dominator ECU, making it an ideal solution for DIY and custom wiring harness builds.

Manufactured with OEM-quality connectors, this is a reliable and professional-grade solution for expanding your ECU's capabilities. The black connector housing offers a clean, factory-style appearance.

Product Details

• Connector Type: Holley J4
• Function: Adds additional I/O (inputs/outputs) to Holley Dominator ECU
• Build Quality: OEM-grade connector
• Color: Black connector housing
• Use Case: Ideal for DIY or custom harness builds across any vehicle platform