Sniper EFI- 550-849K 2300 Self-Tuning Master Kit Shiny

Sniper EFI

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Supports Up To 350 HP - 3.5 in. Handheld Monitor - Return Fuel System

Using the Sniper EFI 2300 you can put an end to cold start issues, hesitations, vapor lock, and flooding on your Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Mustangs, Thunderbirds, Cougars and more. A Sniper kit is the #1 way to upgrade your classic to fuel injection in a cost-efficient way with just 4 simple connections required. After a simple installation designed to be completed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos, you'll be enjoying better engine performance, improved miles per gallon and easier starting. This kit supports up to 350 Horsepower Naturally Aspirated and 285 Horsepower on Forced Induction setups with 2 x 100 Lb/Hr Injectors. You don't have to be a tuning genius or computer wiz to convert your build to EFI. Our simple calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. The Sniper EFI 2300 Master Kit includes a complete fuel system consisting of; 20ft of 3/8" vapor guard fuel hose, fuel pump, filters, and all necessary hardware to return fuel into your tank. Additionally, you're getting a 4.9 wideband oxygen sensor with a leak free oxygen sensor, oem style TPS/IAC, fuel pressure regulator, all Stainless Steel T-Bolt clamps and a Stainless Steel weldable flange. Now that you're beginning your EFI journey, you don't have to stop here! Sniper is apart of a complete ecosystem designed specifically to work together and support all of your EFI needs. This kit pair's seamlessly together with plug-n-play Hyperspark Ignition systems (coil, ignition box and distributors), fuel system's (fuel pump kits, modules, in-tank systems), air cleaners & digital dashes to unlock the full potential of your build.


  • Bolt on 2300 Flange Carburetor Replacement
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • 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!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Supports up to 350HP with Two 100lb/hr Injectors
  • Equipped with C4 / C6 Ford transmission kickdown lever as well as TH350, 400 and 700R4 provisions
  • Accepts many common 5 1/8” OEM or aftermarket air cleaner assemblies
  • Throttle body mounted ECU – no extra boxes to mount
  • Integrated ignition timing control
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • 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 for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Sniper EFI Software free to download which allows for realtime tuning
  • Printable throttle body flange template included
Brand Holley Sniper EFI
CFM 580
Emission Code 3
Finish Shiny
Flange Style 2300
Fuel Pressure 58.5 PSI
Height 3.28"
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 9/16-18 Female O-Ring (AN 6)
MAP Sensor 2Bar
Max Horsepower Rating 350 Naturally Aspirated
Product Type Sniper EFI 2300
Transmission 700R4/200R4
Ford C4/C6
UPC 090127021255
Part Number 550-849K

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