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HP Harnesses

These wiring harnesses work with other Holley components to properly configure your EFI system.
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Brand
  • Holley EFI
Harness Application
  • Ford
  • GM
  • HEMI
  • LSX
  • TBI
  • TPI/ Stealthram
  • Universal
Harness Type
  • Auxiliary
  • Ignition
  • Injector
  • Main
  • Main Battery Power
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