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Holley Sniper EFI

Holley Super Sniper EFI 2x4™ - Shiny

Supports Up To 1250HP NA & Boosted - 3.5 in. Handheld Monitor - Sniper DUAL QUAD™ Fuel Injection Conversion

Part # 550-531
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Holley Super Sniper EFI 2x4™ - Shiny

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$2,613.95
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Emissions

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

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Are you looking to convert your draw-through dual carbureted blower engine to EFI? Do you want a Tunnel Ram setup with Sniper Dual Quad™? Are you putting together a twin-turbo blow-through setup? Look no further! The Sniper EFI 2x4 system features 8, 100LB/HR Fuel Injectors capable of supporting 1250 HP on both naturally aspirated and forced induction applications. The Sniper EFI 2x4 was designed for use on naturally aspirated engines, while the Super Sniper EFI 2x4 system was developed for naturally aspirated, draw-through supercharged, and blow-through turbocharged applications. The Super Sniper EFI 2x4 system is equipped with an internal 2.5bar MAP sensor that is ready to be boost referenced out of the box, supporting up to 21.5 psi of boost on boosted applications. For applications making more than 21.5 psi of boost, the Super Sniper EFI 2x4 system has three additional 0-5v Sensor Inputs which can be used for an external MAP Sensor as well as oil pressure and fuel pressure. So now that you're up to speed on the 2x4 Sniper systems, let's talk overall Sniper! Holley's Sniper EFI is the absolute best way to upgrade your car to fuel injection with just 4 simple connections required. Each 4-barrel system features a dual pattern bolt on design built to fit on intake manifolds with flange spacing between 6.43"-13.5" (Includes most Edelbrock Manifolds). Sniper is designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. Featuring a throttle body mounted ECU with no extra boxes to mount. After the simple installation it's time to let your Sniper begin the self-tuning process. Our user-friendly calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. You don't have to be a computer wiz or specialize in tuning to use a Sniper EFI system! Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. Sniper EFI is part of a complete ecosystem! Your new Sniper kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash to unlock the full potential of your build. Complete your fuel injection journey by checking out our full offer of ignition, fueling and accessories!

Features:

  • Supports up to 1250 HP with Eight 100 Lb/Hr Injectors
  • Fits on intake manifolds with flange spacing between 6.43"-13.5" (Includes most Edelbrock Manifolds)
  • 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!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Compatible with draw through super charged applications
  • 2.5Bar 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
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • One Sensor Ground – Ground supply for 0-5v Sensors
  • Single Throttle body mounted ECU, with easy connections between the two throttle bodies – no extra boxes to mount
  • 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
  • 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
United States Coast Guard Approved
Certified to ISO 8846, SAE J1171 Requirements
Brand Holley Sniper EFI
CFM1600
Coast Guard ApprovedYes
Emission Code3
FinishShiny
Flange Style4150
Dual Bolt Pattern
Fuel Pressure58.5 PSI
Height3.28"
Injector Size100 lb/hr @ 58.5 PSI
Product TypeSniper EFI 2x4
Sale CategoryAir and Fuel Delivery
UPC090127062258
Part Number550-531
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) 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


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
Supercharger and/or Intake Manifold not included. For fitment reference only.

Have a question about this product?

  • Question

    Will your canbus guages work with both the Super Sniper 2x4 and the Sniper 2x4 efi systems?

    By Michael C. on April 12, 2019

    Answer
    Yes!
    Helpful?
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Some parts are not legal for use in California or other states with similar regulations.