Holley | Dominator EFI GM Drive By Wire Harness

Holley – EFI Drive By Wire Harness

Description

The Holley Dominator EFI GM Drive By Wire Harness (558-406) is engineered for LSX applications equipped with electronic throttle control. Designed to work seamlessly with the Dominator EFI ECU, this harness provides a clean, reliable connection between the electronic throttle body and the Holley fuel injection system. Built with OEM-quality connectors, it simplifies installation on GM LSX engines in high-performance, racing, and swap applications. Ideal for builds requiring precise throttle control without a mechanical cable, this harness ensures full Drive-By-Wire functionality with the Dominator EFI platform.

Specifications

• Brand: Holley
• Part Number: 558-406
• Type: EFI Drive By Wire Main Harness
• Engine Application: GM LSX (Drive-By-Wire)
• ECU Compatibility: Dominator EFI
• Throttle Type: Electronic (no mechanical cable)
• Connectors: OEM quality
• Vehicle Compatibility: See Application Section
• Condition: New
• Sold and shipped by GBP Performance

Note:

• Livraison GRATUITE / FREE Delivery