Sold Out
Holley Sniper EFI 558-191 Sniper 2 EFI Main Harness Holley Sniper EFI 558-191
$225.95
This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split loom to keep the wires protected...
Guaranteed Fitment
Always the correct part
In-House Experts
We know our products
Fast Shipping
Quick delivery across Canada
Secure Checkout
100% safe & secure
This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split loom to keep the wires protected in the engine bay. This is intended to be used on applications wanting a fuel pump relay.
Specifications:
| Brand | Holley Sniper EFI |
| Category | Engine |
| Emission Code | 3 |
| 3390 | Performance |
| Harness Application | TBI |
| part type | Engine Control Module (ECM) Wiring Harness |
| Product Type | Sniper EFI Main Harness |
| Sub Category | Wire, Cable and Related Components |
| Warning | California Proposition 65 |
| Description_ABR | SNIP ECMEWH |
| Description_SHO | Sniper 2 EFI Main |
| Description_INV | SNIPER 2 MAIN HARNESS W FUEL PUMP RELAY |
| Description_ASC | For Sniper 2 Main Harness with PDM connections, check out Holley P/N 558-191. |
| Description_DES | Sniper 2 EFI Main Harness |
| Description_EXT | Harness with Fuse and Fuel Pump Relay for Sniper 2 Throttle Body Systems |
| Description_MKT | This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split loom to keep the wires protected in the engine bay. This is intended to be used on applications wanting a fuel pump relay. |
| Description_FAB | 1x 5’ 12g Battery+ 1x 5’ 12g Battery- 1x 3’ 20g Coil - Input Wire 1x 5’ 20g Switched 12V Ignition Wire 1x 20’ 20g Fuel Pump Trigger Wire |
Shipping Information
We offer FREE shipping on all orders within Canada. Most orders ship within 1-2 business days.
Standard delivery typically takes 3-7 business days depending on your location.
Returns Policy
We accept returns within 30 days of purchase. Items must be in original condition with all packaging.
For returns or exchanges, please contact our customer service team.

