Exterior Components› Body Panels and Components
Holley
Wiring Harness Adapter Hyperspark Ignition
SKU: H00E 558-323
Moderate — 2–4 hours
Description
Part #: 558-323
Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104.
Features:
- Used to run a "timed sequential" fuel strategy, with Holley EFI V5 Build 160 or Later, or Terminator X.
Adapters HyperSpark Distributors to Holley EFI Main Harnesses, for use with Terminator X EFI.
MIA's Description
Fitment
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Available on iOS & Android
Specifications
| Brand | Holley |
| Part Number | H00E 558-323 |
| Weight | 0.25 lb |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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