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Holley Super Sniper EFI Stealth 4150 Fuel Injection Systems 550-877 Systems, EFI, 4150, 1250 HP Max, Throttle Body, Black, Flange, Injectors, Wiring Harness, Tuner, Kit

SKU: SNE550-877

Fuel Injection Systems

Holley Super Sniper EFI Stealth 4150 Fuel Injection Systems 550-877 Systems, EFI, 4150, 1250 HP Max, Throttle Body, Black, Flange, Injectors, Wiring Harness, Tuner, Kit

SKU: SNE550-877

Fuel Injection Systems
A$4,638.55
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

Holley Super Sniper EFI Stealth 4150 fuel injection systems are what you need to convert your vehicle to fuel injection. Holley Super Sniper Stealth 4150 systems will also look great under the hood in your choice of shiny, ceramic black, and classic gold finishes.

Features and benefits include:

* Compatible with draw-through or blow-through forced induction applications
* 2 Bar MAP sensor
* Integrated ignition timing control
* -6AN fuel inlets
* High-resolution full color touchscreen for initial setup, tuning, and gauge displays
* Simple calibration wizard--answer a few questions about your engine and it creates the base map, then starts tuning on its own! No laptop required
* Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI
* The included genuine Bosch LSU 4.9 wideband oxygen sensor provides real time Fuel Map Learn
* Three programmable 0-5 V sensor inputs for oil/fuel/dome or nitrous pressure or other critical information
* Six programmable ground outputs, five programmable ground inputs. These can provide the ECU with an input to turn on function, such as an ignition timing
* One +5 V reference output, +5 V power supply for 0-5 V sensors, one sensor ground supply for 0-5 V sensors
* Throttle body mounted ECU--no extra boxes to mount
* Only 4 wiring connections required--battery +, battery -, switched ignition, and rpm
* Required external fuel pressure regulator, 12-886 is recommended
* OEM-style TPS/IAC, for years of dependable service
* Included clamp-on oxygen sensor kit for 2.250 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange

Part Type

Fuel Injection Systems

Data: v4.2 - Upd: 2026-10-14 09:28:59

Specifications

Product Attributes - Brand
Holley Sniper
Product Attributes - Manufacturer's Part Number
550-877
Product Attributes - Part Type
Fuel Injection Systems
Product Attributes - Product Line
Holley Super Sniper EFI Stealth 4150 Fuel Injection Systems
Product Attributes - UPC
90127077979
Product Attributes - Fuel Injection Style
Throttle body
Product Attributes - Fuel Injection System Type
Single 4-Barrel Throttle Body (4150 Flange)
Product Attributes - Maximum Horsepower with Gas
1,250
Product Attributes - Timing Control Compatible
Yes
Product Attributes - ECM Included
Yes
Product Attributes - Self Tuning
Yes
Product Attributes - User Tunable
Yes
Product Attributes - Fuel System Included
None
Product Attributes - Ignition System Included
None
Product Attributes - Power Distribution Included
None
Product Attributes - User Interface Included
3.5 in. display
Product Attributes - EGR
No
Product Attributes - Transmission Controller Included
No
Product Attributes - Metering Style
Speed density
Product Attributes - Multi-Port Fuel Rails Included
No
Product Attributes - Throttle Body Included
Yes
Product Attributes - Throttle Body Mounting Flange
4-barrel square bore
Product Attributes - Venturi Quantity
4
Product Attributes - Airflow Rate (cfm)
870 cfm
Product Attributes - Throttle Body Material
Cast aluminum
Product Attributes - Throttle Body Color
Black
Product Attributes - Injectors Included
Yes
Product Attributes - Injector Size (lbs/hr)
100 lbs./hr.
Product Attributes - Calibration Module Included
Yes
Product Attributes - Wiring Harness Included
Yes
Product Attributes - Oxygen Sensor Included
Yes
Product Attributes - Fuel Pressure Regulator Included
No
Product Attributes - MAP Sensor Included
Yes
Product Attributes - IAT Sensor Included
Yes
Product Attributes - TPS Sensor Included
Yes
Product Attributes - IAC Motor Included
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Holley Sniper
StreetFX SKU sne550-877
SFX Item ID 5013926
Supplier Item Code 5013926
Manufacturer SKU 550-877
Manufacturer UPC N/A
Alternative References SNI550-877

Compatibility

Application Data
  • UniversalYes
    Fuel TypeGAS

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