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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

IMPORTANT NOTICE: Note for Australian & European MarketsThis item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location. Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order products.(keyword: tuner)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Holley Sniper, Sniper, Sniper (holley), Sniper Efi StreetFX SKU sne550-877 SFX Item ID 5013926 Accounting SKU sne-550-877 Manufacturer SKU 550-877 Manufacturer UPC N/A Alternative References 550-877, SNE-550-877, SNI550-877


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:16:45

Part Type

Fuel Injection Systems

Data: v4.2 - Upd: 2026-09-29 03:34:28

Specifications

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

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

Product Attributes
BrandHolley Sniper
Manufacturer's Part Number550-877
Part TypeFuel Injection Systems
Product LineHolley Super Sniper EFI Stealth 4150 Fuel Injection Systems
UPC90127077979
Fuel Injection StyleThrottle body
Fuel Injection System TypeSingle 4-Barrel Throttle Body (4150 Flange)
Maximum Horsepower with Gas1,250
Timing Control CompatibleYes
ECM IncludedYes
Self TuningYes
User TunableYes
Fuel System IncludedNone
Ignition System IncludedNone
Power Distribution IncludedNone
User Interface Included3.5 in. display
EGRNo
Transmission Controller IncludedNo
Metering StyleSpeed density
Multi-Port Fuel Rails IncludedNo
Throttle Body IncludedYes
Throttle Body Mounting Flange4-barrel square bore
Venturi Quantity4
Airflow Rate (cfm)870 cfm
Throttle Body MaterialCast aluminum
Throttle Body ColorBlack
Injectors IncludedYes
Injector Size (lbs/hr)100 lbs./hr.
Calibration Module IncludedYes
Wiring Harness IncludedYes
Oxygen Sensor IncludedYes
Fuel Pressure Regulator IncludedNo
MAP Sensor IncludedYes
IAT Sensor IncludedYes
TPS Sensor IncludedYes
IAC Motor IncludedYes
QuantitySold 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

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
UniversalYes
Fuel TypeGAS

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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