Holley Sniper EFI HyperSpark 2 CD Ignition Boxes 556-154

4.5 out of 5 stars ( 4 )

Part Number: SNE-556-154

$415.95

Ignition Box, Sniper EFI, HyperSpark 2, CD Ignition Box, Black, Capacitive Discharge, Digital, 3.80 in. Long, 3.30 in Wide, Tachometer Output, Each
See More Specifications | Check the Fit

Holley Sniper EFI HyperSpark 2 CD Ignition Boxes 556-154

Holley Sniper EFI HyperSpark 2 CD Ignition Boxes 556-154

SNE-556-154

4.5 out of 5 stars ( 4 )

Part Number: SNE-556-154

Estimated Ship Date: Monday 10/19/2026

$415.95

Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
556-154
Part Type:
Product Line:
Summit Racing Part Number:
SNE-556-154
UPC:
090127147115
Ignition Box Output:
Capacitive discharge
Circuitry:
Digital
Rev Limiter:
No
Timing Retard:
None
Data Acquisition:
No
Spark Output (millijoules):
135-150 mJ
Minimum Operating Voltage:
7 V
Maximum Operating Voltage:
28 V
Length (in.):
3.800 in.
Height (in.):
3.300 in.
Ignition Box Color:
Black
Coil Included:
No
Mounting Bracket Included:
No
Coil Wire Included:
No
Quantity:
Sold individually.

Holley Sniper EFI HyperSpark 2 CD Ignition Boxes

Direct upgrade for existing HyperSpark ignition box, Holley Sniper EFI HyperSpark 2 CD ignition boxes feature a smaller form factor and hotter spark. These low-profile boxes can fit nearly anywhere inside of your engine bay or cockpit. They have all the proven features of their predecessor in a smaller package, making it easier to mount, providing the cleanest installation possible. HyperSpark 2 ignition boxes pack up to 150 mJ of spark energy when used with the matching ignition coil, resulting in enough energy to safely fire your Sniper EFI engine combination.

Features:

* Plug-and-play with existing HyperSpark installations, or Sniper EFI HyperSpark main harnesses
* Includes an ignition harness for fresh Sniper EFI Installs simply wanting to add timing control
* New processor and board design provide a highly efficient ignition, minimal heat, and maximum spark energy with less current draw
* High rpm operation and maximum output using the HyperSpark ignition coil
* Powerful capacitive discharge of multiple sparks improves performance and ensures complete combustion
* Consistently high-spark energy of 135 to 150 mJ for every firing, from idle to redline rpm
* Operates on most 7 to 28 V electrical systems
* Fully protected against an open coil, shorted coil, and open load
* 1.47 lbs. lighter than an original HyperSpark ignition box
* Quickens throttle response and improves starting
* Tach Output to drive an external tachometer

Applications

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