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Holley Sniper 1 EFI to 2 Adapter Harnesses 558-489 Wiring Harness Adapters, Harness System, Pre-Terminated, Each

SKU: SNE558-489

Wiring Harnesses

Holley Sniper 1 EFI to 2 Adapter Harnesses 558-489 Wiring Harness Adapters, Harness System, Pre-Terminated, Each

SKU: SNE558-489

Wiring Harnesses
A$163.71
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed to do exactly that! The Holley Sniper adapter harness is a plug-and-play solution to connect your existing Sniper 1 wiring harness to a Sniper 2 throttle body! It can be used with any Sniper 2 system that is not equipped with a power distribution module (PDM). Simply remove your Sniper EFI throttle body from the intake manifold, unplug all of the connectors, and plug the Sniper EFI 2 adapter harness into your existing main harness. Cycle your ignition key, run a fresh wizard on the display of your choosing, and enjoy the benefits of Sniper EFI 2. Make the switch to Sniper 2 in minutes!

Sniper EFI 2 is a high performance electronic fuel injection system designed for a wide range of engines and horsepower goals. It provides improved engine performance, better fuel efficiency, and easier starting, making it the perfect upgrade for any enthusiast looking to take their ride to the next level. With its easy installation and advanced technology, the Sniper EFI 2 is the ultimate fuel injection system for any conventional V8 engine.

Features:

* Update your Sniper 1 to Sniper 2 in less than an hour: One-step, plug-and-play upgrade from your existing Sniper EFI install to a Sniper 2 throttle body
* Eliminates the need to rewire your existing Sniper EFI installation
* The wiring harness included with the Sniper 2 kit will not be used. This adapter is intended to be used with the original Sniper EFI wiring harness and new Sniper 2 EFI throttle body

Sniper 2 EFI benefits:

* (NEW) Next Generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires) 
* (NEW) "Hidden Harness" wiring harnesses exit from the rear of throttle body for a clean appearance 
* (NEW) Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V) and 1x tach output 
* (NEW) Next Generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection 

Part Type

Wiring Harnesses

Data: v4.2 - Upd: 2026-09-29 03:34:20

Specifications

Product Attributes - Brand
Holley Sniper
Product Attributes - Manufacturer's Part Number
558-489
Product Attributes - Part Type
Wiring Harnesses
Product Attributes - Product Line
Holley Sniper 1 EFI to Sniper 2 EFI Adapter Harnesses
Product Attributes - UPC
090127842942
Product Attributes - Fuse Block Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
For use when upgrading from Holley Sniper 1 EFI to Holley Sniper 2 EFI. Adapts Holley Sniper 1 EFI vehicle wiring to a Holley Sniper 2 EFI unit.

Reference Information

Brand Name/s Holley Sniper
StreetFX SKU sne558-489
SFX Item ID 5013768
Supplier Item Code 5013768
Manufacturer SKU 558-489
Manufacturer UPC 90127842942
Alternative References SNI558-489

Compatibility

Application Data
  • UniversalYes
    Fuel Injection ConfigurationHolley Sniper 2 EFI
    Wiring Harness ClassificationFuel injector controller
    Application NotesFor use when upgrading from Holley Sniper 1 EFI to Holley Sniper 2 EFI. Adapts Holley Sniper 1 EFI vehicle wiring to a Holley Sniper 2 EFI unit.

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