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Holley Super Sniper EFI Self-Tuning Fuel Injection System : 650HP : Black : 4150 Flange : NA & Forced Induction

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AU$3,220.00
Expected ship date:16 Nov 2026(if ordered today)
AU$3,220.00
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Overview

The Holley Sniper EFI Self-Tuning Fuel Injection System is the perfect upgrade for any classic. With its easy-to-install design, you won't need any computer skills to get it up and running. Say goodbye to the hassle of adjusting needles and float levels and hello to a smoother ride. This master kit supports up to 650HP and features a sleek black finish with a 4150 flange. Upgrade your vehicle today with the Holley Sniper EFI Self-Tuning Fuel Injection System from Hemi Performance.


Holley Sniper EFI Self-Tuning Fuel Injection Systems

Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI? Look no further. Holley offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.
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Features:

  • 650 HP version features four 100 Lb/Hr Injectors
  • Compatible with Draw-Thru or Blow-Thru forced induction applications
  • User-friendly Boost Control with handheld adjustability
  • Programmable Target Air Fuel Ratios per Boost level
  • Advanced boost control is available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time – Same popular boost control offered in Holley HP and Dominator EFI systems!
  • 2.5 Bar MAP sensor included which safely works on applications up to 21.5 PSI
  • Built-in Single stage progressive nitrous control
  • Dry or Wet Nitrous Support
  • Progressive or Non-Progressive control strategies
  • Lean/Rich AFR Cutoff
  • Time or RPM based Timing Retard and much more!
  • Integrated ignition timing control for precise timing curves
  • Programmable inputs and outputs
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • Six Programmable Ground Outputs
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
  • One Sensor Ground – Ground supply for 0-5v Sensors
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
  • 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)
  • 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!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time 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
  • Throttle body mounted ECU – no extra boxes to mount
  • USB to CAN Communication cable included for easy laptop tuning of advanced controls
  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
  • Compatible with Holley EFI analog gauges and electronic dashes
  • Patent Pending
Manufacturer Specifications
Brand:Holley Sniper
Manufacturer's Part Number:550-518
Part Type:Fuel Injection Systems
Product Line:Holley Sniper EFI 650 HP Super Sniper Fuel Injection Systems
Summit Racing Part Number:SNE-550-518
UPC:090127039663
Fuel Injection Style:Throttle body
Fuel Injection System Type:Single 4-Barrel Throttle Body (4150 Flange)
Maximum Horsepower with Gas:650
Timing Control Compatible:Yes
Power Adder Compatible:Yes
ECM Included:Yes
Self Tuning:Yes
User Tunable:Yes
Fuel Pump Included:No
EGR:No
Transmission Controller Included:No
Metering Style:Speed density
Intake Manifold Included:No
Multi-Port Fuel Rails Included:No
Throttle Body Included:Yes
Throttle Body Mounting Flange:4-barrel square bore
Venturi Quantity:4
Venturi Diameter (mm):44.45mm
Airflow Rate (cfm):800 cfm
Throttle Body Material:Cast aluminum
Throttle Body Finish:Tumble polished
Injectors Included:Yes
Injector Size (lbs/hr):100 lbs./hr.
Calibration Module Included:Yes
Wiring Harness Included:Yes
Oxygen Sensor Included:Yes
Fuel Pressure Regulator Included:Yes
Distributor Included:No
MAP Sensor Included:Yes
IAT Sensor Included:No
TPS Sensor Included:Yes
IAC Motor Included:Yes
Quantity:Sold as a kit.

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Additional Information

SKU 92893
Part Type EFI Conversion Kit
Section Fuel Injection
Department Fuel System & Carburettors
Sale Unit Each
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