$438 Off

Holley Sniper 550-511-BXD 4-barrel Self-Tuning EFI Conversion Kit

$438 Off

#425550511BXD

Holley Sniper 550-511-BXD 4-barrel Self-Tuning EFI Conversion Kit

Self-tuning, easy-to-install fuel injection system designed for 4-barrel carburetors, adding 14 new features for enhanced reliability and ease of use
An optional Power Distribution Module (PDM) simplifies wiring by centralizing EFI and ignition wiring connections

Finish:

Black

Fuel System:

Universal Returnless Drop In Module

Not Included MasterUniversal Drop In Module

Hyperspark Ignition Kit:

Power Distribution Module:

User Interface:

Bluetooth Module

$1,699.95

In Stock

$2,137.95

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Product Summary

Universal Fit, Throttle Body Injection Style

Self-tuning, easy-to-install fuel injection system designed for 4-barrel carburetors, adding 14 new features for enhanced reliability and ease of use
An optional Power Distribution Module (PDM) simplifies wiring by centralizing EFI and ignition wiring connections
User-friendly setup wizard and self-tuning function eliminate the need for a laptop, while the system supports up to 650hp (naturally aspirated) and 575hp (boosted)
It integrates seamlessly with the Sniper Ecosystem, allowing for compatibility with Hyperspark Ignition, fuel systems, and various user interfaces
New hardware improvements include a noise-resistant ECU, redesigned throttle components, and multiple wiring upgrades for reliability and a cleaner installation

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Key Specs

Injection Style	Throttle Body
Injector Size	100 lb/hr @ 58.5 PSI
Max Horsepower Rating	650
ECM Included	Yes
Throttle Body Style	Throttle Body Injection (TBI)

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855.313.9176

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Holley Sniper 550-511-BXD Details

The Sniper 2 EFI is a self-tuning, easy-to-install EFI system that enhances classic 4-barrel carburetors with 14 new features for smoother drivability, compatibility with the Sniper Ecosystem, optional Power Distribution Module for simplified wiring, and robust support for high-performance engines up to 650hp, all designed to provide a modern fuel-injected experience with minimal installation effort.

Self-tuning, easy-to-install fuel injection system designed for 4-barrel carburetors, adding 14 new features for enhanced reliability and ease of use
An optional Power Distribution Module (PDM) simplifies wiring by centralizing EFI and ignition wiring connections
User-friendly setup wizard and self-tuning function eliminate the need for a laptop, while the system supports up to 650hp (naturally aspirated) and 575hp (boosted)
It integrates seamlessly with the Sniper Ecosystem, allowing for compatibility with Hyperspark Ignition, fuel systems, and various user interfaces
New hardware improvements include a noise-resistant ECU, redesigned throttle components, and multiple wiring upgrades for reliability and a cleaner installation

Guides & Documents

Fuel Injection Systems Installation Instructions (425550511BXD)

Fuel Injection Systems Warranty (425550511BXD)

CARB Warning

For use on pre-1966 vehicles only

Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Holley Sniper 550-511-BXD Specifications

KEY SPECS
MFG. Part #	550-511-BXD
Brand	Holley Sniper
Injection Style	Throttle Body
Injector Size	100 lb/hr @ 58.5 PSI
Max Horsepower Rating	650
ECM Included	Yes
Throttle Body Style	Throttle Body Injection (TBI)

GENERAL
CFM	800 CFM
User Tunable	Yes
Self Tuning	Yes
Injectors Included	Yes
Intake Manifold Included	No
Metering Style	Speed density
EGR	No
Throttle Body Included	Yes
Throttle Body Material	Cast Aluminum
Throttle Body Finish	Powder Coated
Throttle Body Flange Type	4-Barrel Square Bore
Venturi Quantity	4
Fuel Pump Included	Yes
Calibration Module Included	Yes
Wiring Harness Included	Yes
Fuel Pressure Regulator Included	Yes
MAP Sensor Included	Yes
IAC Motor Included	Yes
IAT Sensor Included	Yes
TPS Sensor Included	Yes
Airflow Rate	800
Color	Black
Throttle Body Barrels	4-Barrel
Gaskets Included	No
Hardware Included	Yes
Flow Rating	340
Sold in Quantity	Kit

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