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PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these.
Specifications:
| Brand | Holley EFI |
| Category | Engine |
| Emission Code | 5 |
| 3390 | Performance |
| Harness Type | Auxiliary |
| part type | Engine Control Module (ECM) Wiring Harness |
| Product Type | Terminator Input / Output |
| Sub Category | Wire, Cable and Related Components |
| Warning | California Proposition 65 |
| Description_INV | TERMINATOR EFI I/O KIT |
| Description_DES | Terminator EFI Input/Output Kit |
| Description_EXT | This kit contains 4 extra input wires and 1 extra output wire that the base Terminator EFI harness does not contain. |
| Description_MKT | PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these. |