Home Holley Sniper EFI Super Sniper 650 - Black 550-519

Holley Sniper EFI Super Sniper 650 - Black 550-519

NOW $5,356.00
Or 4 interest-free payments of $1,339.00
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide
Holley's Super Sniper EFI 650 is the #1 way to convert your blow-through carbureted turbo engine to fuel injection with just 4 simple connections required. This 4-barrel system features a dual pattern bolt on design built to fit 4150 flange & spreadbore manifolds. Super Sniper is designed specifically for lower horsepower boosted applications or someone just looking for some additional sensor inputs. Super Sniper can support up to 650HP naturally aspirated or 600HP boosted with 4 100 LB/HR Injectors.

We want everything to be as simple as it can be for you! Sniper kits are built and 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. 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 650HP Boosted
  • 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!
  • 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 dont have to be a computer/tuning wiz to have EFI!
  • Time or RPM based Timing Retard and much more!
  • Compatible with Draw-Thru or Blow-Thru forced induction applications
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
  • 2.5 Bar MAP sensor included which safely works on applications up to 21.5 PSI
  • 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!
  • Six Programmable Ground Outputs
  • User-friendly Boost Control with handheld adjustability
  • Throttle body mounted ECU no extra boxes to mount
  • Programmable inputs and outputs
  • High-Resolution Full Color Touchscreen for initial Setup, Tuning, and Gauge Displays
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • One Sensor Ground Ground supply for 0-5v Sensors
  • OEM Style TPS/IAC and fuel pressure regulator, for years of dependable service
  • Progressive or Non-Progressive control strategies
  • The included Genuine Bosch LSU 4.9 Wideband
  • Oxygen Sensor provides real-time Fuel Map Learn!
  • 650 HP version features four 100 Lb/Hr Injectors
  • Lean/Rich AFR Cutoff
  • 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)
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Compatible with Holley EFI analog gauges and electronic dashes

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

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