Product Description
Holley Smart Coil Ignition Harness for HP & Dominator ECUs | 558-312
Upgrade your ignition system with the Holley HP Smart Coil Sub-Harness, designed to seamlessly integrate Holley HP Smart Coils into your LS-based setup. This harness set includes a pair of coil sub-harnesses for a complete V8 engine and is engineered for easy installation with Holley plug-and-play systems.
Built similarly to factory GM LSx coil harnesses, these sub-harnesses allow for a clean and reliable upgrade from OEM LS coils to Holley HP Smart Coils while maintaining a straightforward installation process.
Key Features:
- Complete V8 Harness Set: Includes (2) coil sub-harnesses for an 8-cylinder engine
- Plug & Play Design: Connects directly to Holley LSx plug-and-play main harnesses
- OEM-Style Fitment: Designed similar to factory GM LSx coil harnesses
- Holley Smart Coil Compatible: Designed specifically for use with Holley HP Smart Coils
- ECU Compatibility: Works with Holley HP and Dominator ECUs
Additional Notes:
- Ideal for converting from factory LS coils to Holley HP Smart Coils
- For use with non-LSx main harnesses, additional connectors and wiring are required (Holley PN 558-307)
- Designed for clean installation and reliable ignition performance
