Injector Driver Harness
Type: Harness
The Holley EFI Injector Driver Harness comes pre-terminated with a J2B connector, for plug and play connectivity with your Dominator ECU. This harness is designed to be used with the "custom" staged injection strategy in Holley EFI V5 software. Includes CAN connectors, allowing you to quickly diagnose any issues over the CAN network.
Features:
- Designed to work with the Holley EFI 554-143 injector driver module, and a 554-114 Dominator ECU.
- Techflex F6 loomed harness provides protection from engine bay dirt and grime, while matching your Holley EFI harness for a clean installation.
- Plug and play pre-termination allows you to quickly update your installation to 16+ injectors.
- Allows you to easily add a second set of injectors by utilizing Holley EFI V5 and up with Custom Staged Injection strategies.
Specs:
- Brand: Holley EFI
- Category: Air and Fuel Delivery
- Emission Code: 3
- Part Type: Fuel Injection Harness
- Product Type: Harness
- Sub Category: Wire, Cable and Related Components
Tech Resources:
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Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
