---
product_id: 70511943
title: "Holley EFI Sniper Hyperspark Efi Ignition (556-151)"
brand: "holley"
price: "C$45526"
currency: NIO
in_stock: true
reviews_count: 12
category: "Holley"
url: https://www.desertcart.ni/products/70511943-holley-efi-sniper-hyperspark-efi-ignition-556-151
store_origin: NI
region: Nicaragua
---

# Universal Fit Ignition Power Easy Screw-In/Bolt-On Installation Proudly Made in USA Holley EFI Sniper Hyperspark Efi Ignition (556-151)

**Brand:** holley
**Price:** C$45526
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s soul with Holley’s race-winning spark!

## Quick Answers

- **What is this?** Holley EFI Sniper Hyperspark Efi Ignition (556-151) by holley
- **How much does it cost?** C$45526 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/70511943-holley-efi-sniper-hyperspark-efi-ignition-556-151)

## Best For

- holley enthusiasts

## Why This Product

- Trusted holley brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Race-Proven Legacy:** Backed by Holley’s century of dominance in motorsports, powering champions and street legends alike.
- • **Effortless Installation:** Screw-in or bolt-on design lets you get back on the road faster with minimal downtime.
- • **Plug & Play Power Boost:** Universal fitment means seamless upgrade for your ride—no guesswork, just pure ignition performance.
- • **Smart Tuning Compatibility:** Optimized for easy tuning with Holley EFI systems—unlock your engine’s true potential without the hassle.
- • **Precision Machined Durability:** Crafted with machined exterior for long-lasting reliability that keeps your engine firing flawlessly.

## Overview

The Holley EFI Sniper Hyperspark Ignition (model 556-151) is a universal-fit, precision-machined ignition control unit designed for easy installation and reliable performance. Made in the USA, it leverages Holley’s 100+ years of motorsport expertise to deliver superior spark energy and tuning compatibility, making it the go-to upgrade for professional and enthusiast drivers seeking a competitive edge.

## Description

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!

Review: East to tune Holley EFI - Excellent easy to install, directions were right on point made tuning easy and quick. Should have ordered this from the start car never ran better.
Review: I hope my review helps others to understand the Holly sniper better. - At first when I installed it it wasn't working what I mean the light on the module was coming on but no sparks was getting to the spark plugs at first and then I discovered why I didn't put what kind of distributor I was using in to the Holly sniper computer system using the handheld screen when I did then it started working Sparks was getting to the spark plugs like never I seen it before I was so happy it was working good from February/ 7 to April/19/2021 and then it stopped working in the light on the module the orange light will not turn green or red when you turn the key and I paid $210 dollars for this module the spark plugs was not getting no power going to them and the over the phone technician told me some things I should check out like the white wire coming from the module disconnect that wire and put it on a ground source and he told me if the module still won't respond then it definitely that and I tried it still no response from module den I thought of the other thing that technician told me to check the ram signal on the digital handheld display so I did I saw no ram single when I go to crank my car so then I looked around the only way the Holley sniper computer system can tell when your engine is rotating during cranking have to be through the distributor because from the Holley sniper to the distributor has the crank signal wire running from it to the Holley sniper and that makes me suspect that the problem is right there inside the distributor the hyperspark EFI distributor I suspect that thing has a sensor inside that tells the Holley sniper computer system when your car's engine is moving if I'm right that sensor has going bad and that's why I'm not getting no ram signal. But the downside about this if your computer illiterate you have a bit of a hard time with this trying to figure this out I would have never had figured this out unless I read the instruction on my distributor that I was using the hyper spark distributor that I brought with the Holly sniper at first I thought something wrong with the module but that wasn't the case it was something I didn't do when it comes to the distributor that I install with the Holly sniper that I discovered.

## Features

- Package Dimensions: 7.112 cms (L) x 14.986 cms (W) x 7.112 cms (H)
- Product Type: Auto Part
- Package Quantity: 1
- Country Of Origin: United States
- Durable and long lasting
- Fit type: Universal Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DWDKPNW |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #337,001 in Automotive ( See Top 100 in Automotive ) #95 in Automotive Replacement Ignition Control Units |
| Brand | Holley |
| Connector Gender | male |
| Customer Reviews | 4.6 4.6 out of 5 stars (173) |
| Date First Available | June 20, 2018 |
| Exterior | Machined |
| Global Trade Identification Number | 00090127030059 |
| Installation Type | Screw-In or Bolt-On |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.19 pounds |
| Item dimensions L x W x H | 4.8 x 4.8 x 12 inches |
| Item model number | 556-151 |
| Manufacturer | Sniper |
| Manufacturer Part Number | 556-151 |
| Model | Holley EFI Sniper Hyperspark Efi Ignition |
| OEM Part Number | 556-151 |
| Product Dimensions | 4.8 x 4.8 x 12 inches |
| UPC | 090127030059 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Holley
- **Connector Gender:** male
- **Item Weight:** 1.45 Kilograms
- **Item dimensions L x W x H:** 4.8 x 4.8 x 12 inches
- **Vehicle Service Type:** Car

## Images

![Holley EFI Sniper Hyperspark Efi Ignition (556-151) - Image 1](https://m.media-amazon.com/images/I/51Q8N9JktwL.jpg)
![Holley EFI Sniper Hyperspark Efi Ignition (556-151) - Image 2](https://m.media-amazon.com/images/I/51dX-Ns28dL.jpg)
![Holley EFI Sniper Hyperspark Efi Ignition (556-151) - Image 3](https://m.media-amazon.com/images/I/412JdxZPaOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ East to tune Holley EFI
*by D***O on March 19, 2025*

Excellent easy to install, directions were right on point made tuning easy and quick. Should have ordered this from the start car never ran better.

### ⭐⭐⭐⭐⭐ I hope my review helps others to understand the Holly sniper better.
*by A***D on February 18, 2021*

At first when I installed it it wasn't working what I mean the light on the module was coming on but no sparks was getting to the spark plugs at first and then I discovered why I didn't put what kind of distributor I was using in to the Holly sniper computer system using the handheld screen when I did then it started working Sparks was getting to the spark plugs like never I seen it before I was so happy it was working good from February/ 7 to April/19/2021 and then it stopped working in the light on the module the orange light will not turn green or red when you turn the key and I paid $210 dollars for this module the spark plugs was not getting no power going to them and the over the phone technician told me some things I should check out like the white wire coming from the module disconnect that wire and put it on a ground source and he told me if the module still won't respond then it definitely that and I tried it still no response from module den I thought of the other thing that technician told me to check the ram signal on the digital handheld display so I did I saw no ram single when I go to crank my car so then I looked around the only way the Holley sniper computer system can tell when your engine is rotating during cranking have to be through the distributor because from the Holley sniper to the distributor has the crank signal wire running from it to the Holley sniper and that makes me suspect that the problem is right there inside the distributor the hyperspark EFI distributor I suspect that thing has a sensor inside that tells the Holley sniper computer system when your car's engine is moving if I'm right that sensor has going bad and that's why I'm not getting no ram signal. But the downside about this if your computer illiterate you have a bit of a hard time with this trying to figure this out I would have never had figured this out unless I read the instruction on my distributor that I was using the hyper spark distributor that I brought with the Holly sniper at first I thought something wrong with the module but that wasn't the case it was something I didn't do when it comes to the distributor that I install with the Holly sniper that I discovered.

### ⭐⭐⭐⭐⭐ 1995 GMC C1500
*by T***C on January 11, 2020*

I have not fired up the engine yet. So far, it was pretty simple to install. I made a mount for it to put inside my glove box area without modification to the truck itself. I took out the black plastic piece in the glove box that holds all the stuff. It feels very well made. It has a nice weight to it and it feels like it's made out of aluminum on the outside.

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-13*