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Holley Sniper EFI 4150 2x4 Self-Tuning Fuel Injection Kit 1250 HP - Black Ceramic

550-528
Introducing Sniper EFI 4150 2x4! Looking to convert your draw-through dual carbureted engine to EFI? Do you have a Tunnel Ram with dual quad carbs? Look no further! The Sniper EFI 4150 2x4 system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting 1250 HP on naturally aspirated applications. The Sniper EFI 4150 2x4 was designed for use on naturally aspirated engines, while the Super Sniper EFI 4150 2x4 system (part# 550-532) was developed for both naturally aspirated and draw through supercharged applications. Every Sniper EFI can be used with free downloadable Sniper EFI Software, giving you unlimited control of your engine. Super Sniper EFI 2x4 comes with a USB to CAN tuning cable allowing for live engine tuning.

E-85 NOT Recommended
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Description

Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. They put an end to carburetor cold start issues, hesitations, vapor lock, and flooding. Each of these Holley Sniper EFI systems hit the performance mark with a mounted ECU and an integrated fuel pressure regulator. They're self-learning (no laptop is needed for set up) and they include a small color touchscreen to help you set up and tweak. Holley also provides you with a choice of finishes—satin black or polished aluminum. Make your conversion simple, while getting maximum bang for your buck, with a Holley Sniper EFI self-tuning fuel injection system from Holley.

Upgrade to Sniper EFI and get the tactical accuracy of EFI
today!

Features:
Supports up to 1250 HP with Eight 100 Lb/Hr Injectors
Internal MAP Sensor
Integrated ignition timing control
Built in Single stage progressive nitrous control
Programmable Target Air Fuel Ratios & Ignition Timing per Boost level
USB to CAN Communication cable included for easy laptop tuning
Single Throttle body mounted ECU, with easy connections between the two throttle bodies – no extra boxes to mount
Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
Fits on intake manifolds with flange spacing between 6.43"-13.5" (Includes most Edelbrock Manifolds)
Requires an external fuel pressure regulator: P/N 12-848 up to 800 HP, 12-851 for 1000+ HP
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 realtime Fuel Map Learn!
OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
Patent Pending

Brand Holley Sniper EFI
CFM 1600
Coast Guard Approved Yes
Emission Code 3
Finish Black
Fuel Pressure 58.5 PSI
Height 3.28"
Injector Size 100 lb/hr @ 58.5 PSI
Max Horsepower Rating 1250 Naturally Aspirated
Product Type EFI System
Part Number 550-528

Emissions
1965 and older U.S. manufactured California Certified vehicles
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Details

  • 550-528
  • 550-528
  • Holley
  • New

Categories

Shipping Information

  • Item Requires Shipping
  • 9.0 lbs.
  • W11.0000” x H8.0000” x L12.2500”
  • Free Basic Shipping
  • FREE Fast Priority Mail shipping to the USA and it's territories on ALL Holley products

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