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Holley Sniper EFI

Holley Sniper EFI 550-528 4150 2x4 -Black

Part # 550-528 Be the first to write a review

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Holley Sniper EFI 550-528 4150 2x4 -Black

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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.

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 â€" 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
Emission Code3
Product TypeThrottle Body Fuel Injection Systems
UPC090127062234
Manufacturer Part Number550-528
Part Number550-528
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Quickstart Guide for Part# 550-528
Instructions for 550-528
Supercharger and/or Intake Manifold not included. For fitment reference only.

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      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.