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EFI - Fuel Injection

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  • Gauges and Displays
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  • Injectors
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  • Modules and Sensors
  • Throttle Bodies and Fuel Components
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  • Harnesses and Wiring
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  • Legacy EFI

Sniper EFI Systems

Sniper 2 4BBL

  • Supports up to 650hp with Four 100 Lb/Hr Injectors
  • Throttle body mounted ECU – no extra boxes to mount
  • Dual Pattern bolt on carburetor replacement designed to fit 4150 Flange and spreadbore manifolds
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI
  • Integrated ignition timing control & coil driver when used with Hyperspark or MSD Pro-Billet distributors
View Holley Sniper 2 EFI - Black

Autolite 1100

  • Bolt-On Sniper EFI throttle body replacement for Autolite 1100 Carburetors
  • Designed with a mounting flange to fit the intake manifolds that originally had Autolite 1100 carburetors installed. Applications include 1963 – 1967 Inline 6 Cylinder Ford engines, from 144ci to 300ci
  • Only 4 Wiring Connections Required (Battery +, Battery - , Switched Ignition & RPM)
  • Such engines were commonly found in Mustang, Falcon, Fairlane, and various Ford trucks.
  • Supports up to 175 HP with One 100lb/hr Injector
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
View Holley Sniper EFI Autolite 1100 - Classic Gold

2300

  • Bolt on 2300 Flange Carburetor Replacement
  • Supports up to 350 HP naturally aspirated or 285 HP forced induction
  • (2) 100 lb./hr. fuel injectors
  • Equipped with C4 / C6 Ford transmission kickdown lever along with TH350, TH400, and 700R4 provisions
  • Accepts many common 5 1/8" OEM or aftermarket air cleaner assemblies
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
View Holley Sniper EFI 2300 - Black

Quadrajet™

  • Designed to deliver the signature Rochester roar at wide open throttle
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 500 horsepower with four 100 lb/hr injectors
  • Only four wiring connections required (Battery +, Battery - , Switched Ignition & RPM)
  • Integrated ignition timing control when used with Hyperspark or MSD Pro-Billet distributors
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
View Holley Sniper EFI Quadrajet™ - Classic Gold

Jeep BBD

  • Bolt on BBD Carburetor Replacement
  • Supports up to 350HP with Two 100lb/hr Injectors
  • Engineered specifically for 1971-1986 Jeep CJ’s with 258ci 6 Cylinder Engines
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator
  • Integrated ignition timing control
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
View Holley Sniper EFI BBD for 1971-1986 Jeep CJ - Shiny

Stealth 4500

  • Supports up to 1500 naturally aspirated HP or 1250 in forced induction applications with eight 100 lb/jr injectors
  • Compatible with draw-through or blow-through forced induction applications
  • 2.125” throttle plates flow 1440 CFM for large displacement engines
  • Integrated ignition timing control when used with Hyperspark or MSD Pro-Billet distributors
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI
  • Throttle body mounted ECU – no extra boxes to mount
View Holley Sniper EFI Stealth 4500 - Black

2GC Small Bore

  • Bolt on Rochester 2GC small bore two barrel carburetor replacement
  • Installs directly to the factory Rochester 2GC small bore intake manifold, no adapter required
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator
  • Engineered to fit 1955-1969 GM vehicles that utilized the Rochester 2GC small bore carburetor
  • Designed to fit most factory 2GC air cleaner assemblies
  • Universal throttle lever with TH350, 700R4 & 200-4R kick down provisions
View Holley Sniper EFI 2GC Small Bore - Classic Gold

2GC Large Bore

  • Engineered to fit 1974-1978 GM vehicles that utilized the Rochester 2GC large bore carburetor
  • Universal throttle lever with TH350, 700R4 & 200-4R kick down provisions
  • Installs directly to the factory Rochester 2GC large bore intake manifold, no adapter required
  • Supports up to 350HP with Two 100lb/hr Injectors
  • Bolt on Rochester 2GC large bore two barrel carburetor replacement
  • Designed to fit most factory Rochester 2GC large bore air cleaner assemblies
View Holley Sniper EFI 2GC Large Bore - Classic Gold

Super Sniper Stealth 1250

  • Bolt on 4150 Flange Carburetor Replacement
  • Supports up to 1250hp with Eight 100 Lb/Hr Injectors!
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • Six Programmable Ground Outputs
  • One Sensor Ground – Ground supply for 0-5v Sensors
View Holley Sniper EFI Super Sniper Stealth 1250 - Black

Stealth 4150

  • Bolt on 4150 Flange Carburetor Replacement
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
View Holley Sniper Stealth 4150 - Shiny

Terminator X Systems

Gen III/IV LS

  • Standalone Plug and Play Engine Control for GM LS Engines
  • Terminator X Features Real-Time Fuel Learn, High Impedance Injector Drivers, Integrated 1bar MAP Sensor & 4 Programmable Inputs and Outputs
  • Terminator X Max - also Controls GM Automatic Transmission (4L60/4L65/4L70/4L75/4L80/4L85)
  • Inputs & Outputs Are Ideal for Electric Fans, Boost Control Solenoids, Progressive Nitrous Control & More
Shop Terminator X and X Max LS Kits

Gen V LT

  • Standalone Plug and Play Engine Control for GM Gen V LT Engines
  • Terminator X Features Real-Time Fuel Learn, High Impedance Injector Drivers, Integrated 1bar MAP Sensor & 4 Programmable Inputs and Outputs
  • Terminator X Max - also Controls GM Automatic Transmission (4L60/4L65/4L70/4L75/4L80/4L85)
  • Inputs & Outputs Are Ideal for Electric Fans, Boost Control Solenoids, Progressive Nitrous Control & More
Shop Terminator X and X Max Gen V LT Direct Injection Kits

Mod Motor/Coyote/SBF

  • Plug and play Ford V8 engine control, such as the 302w, 351w, 460 Big Block, 4.6L/5.4L Modular, and Coyote.
  • Includes EV1 Injector Harness, for commonly found injectors on most stock ford engines.
  • Fox body Specific Kits contain an ECU Mounting Bracket - TFI Ignition Adapter - a foxbody specific engine main harness, as well as MAT and CTS sensors. These kits also include application specific installation instructions to help you quickly and accurately convert your 5.0 powered foxbody to Terminator X EFI!
  • Drive-by Wire Throttle Body Control (Terminator X Max Only)
  • Ford 4R70W Transmission Control Harness (Terminator X Max Only)
Shop Terminator X and X Max Ford Kits

Gen III Hemi

  • Plug and play GEN III HEMI engine control for 2003-2013+ such as the 5.7L, 6.1L and 6.4L engines
  • Plug and Play compatible with Holley EFI accessories – Analog gauges, shift lights, modules, and both 6.86” and 12.3” Pro Dash
  • Drive-by Wire Throttle Body Control (Terminator X Max Only)
  • Electronic Transmission Control (Terminator X Max Only)
  • EV1 or EV6 injector harness included (depending on your injector configuration)
Shop Terminator X and X Max GEN III HEMI Kits

Stealth 4bbl

  • Bolt on 4150 Flange Carburetor Replacement
  • Capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications
  • Terminator X Max Stealth 4150 kits provide transmission control for Pre-2009 GM 4L60E/4L80E Transmissions (Part numbers 550-1011, 550-1012,550-1013)
  • Internal 1bar MAP sensor, built into the Terminator X ECU.
Shop Terminator X and X Max Stealth 4150

6L80E/90E Control

  • Plug and play with any engine controlled by a Terminator X Max ECU
  • V3 software unlocks more tuning potential and driveability options
  • Supports Shift Mode, Tap Up/Tap Down, and Torque Management
  • Included 3.5" LCD touchscreeen handheld tuner with integrated setup wizard
View Holley EFI Terminator X Max Transmission Kit - GM 6L80/6L90

EFI Products

Dominator EFI

  • Plug-and-play harness kits available for GM LS, Ford Coyote, Ford Mod Motor, and Dodge Gen III Hemi as well as universal unterminated harnesses to use on any engine you can imagine
  • Pound per hour and VE fueling strategies let you tune your engine the way you want to
  • Add-ons such as Coyote Ti-VCT control, time-based traction control, and a CAN input/output addition put HP EFI in a class of its own
  • Integrated boost and nitrous control is easy to use and makes add-on control boxes for power adders a thing of the past
  • Built-in base tunes allow you to get your project fired up quickly and easily
Shop Dominator EFI

12.3 inch Pro Dash

  • Real-time ECU tuning, allows you to make quick tune changes, without needing to hook up a laptop!
  • Capable of monitoring up to 238 real-time values such as RPM/TPS/Boost
  • 16 default background skins pre-loaded with unlimited options for importing custom layouts
  • Quickly swipe between multiple active screens (tune, warm-up, race, drive, etc.)
  • Virtual switch panel eliminates the need for external toggle switches
  • Manual or auto-brightness features for easy viewing day or night
  • Built-in GPS with odometer function (Antenna included)
  • On-screen datalog playback features allows you to review vital run information
  • Expandable storage via USB
  • No stylus required, capacitive touch, just like your smart phone.
  • User definable channel alarms and warnings
  • 6x 1/4-28 mounting holes for surface or flush mounting, with high quality hardware included!
  • Includes everything needed for installation!
  • USB Keyboard and Mouse functionality makes it quick and easy to setup new layouts
  • Includes 34 Pin Wiring Harness contains Power, Ground and CANbus connections
  • Input and output functionality for 13 multi-configurable inputs, and 4 ground switched outputs.
  • User defined alarms for any input
  • Upgradable with future software enhancements
  • Viewing area is 12.3" on the diagonal, 11.5" wide by 4.25" tall
  • Dash weight - 3.29lbs
  • Compatible with our Plug and Play Programmable Shift Light - Part Number 553-107
View Holley EFI 12.3" Pro Dash

7 inch Digital Dash

  • Plug and play connection to all Holley EFI systems via CAN bus
  • Compact, customizable dash for use in a variety of motorsports applications
  • 7" low glare, high brightness, high contrast, full color touch screen for easy viewing even in full sun
  • 800x480 resolution with auto brightness
  • Operating voltage min 8V - 20V
  • Weather proof aluminum housing featuring flexible mounting options
  • Completely customizable display of all EFI parameters including every user configurable input and output available
  • Multiple gauge and indicator types with limitless customization options
  • Quickly toggle between multiple active screens (tune, warm-up, race, drive, etc.)
  • Virtual Switch Panel (replaces the need for physical switches)
  • User defined alarms for any input
  • Configurable progressive shift lights and light bar
  • Control and on screen playback of EFI data logs
  • Download and save Holley EFI data logs to external USB memory stick
  • Expandable internal storage on micro SD card
  • Support for future USB devices
  • Upgradable with future software enhancements
  • Optional harness available to add physical inputs and outputs to the dash that can be used to perform multiple operations
  • Integrated 3 Axis Accelerometer
View Holley EFI 7" Digital Dash

CAN EGT Kit

  • Compatible with HP or Dominator EFI, and Terminator X EFI.
  • Plug and Play 8 Channel CAN EGT Module, for a quick and easy installation
  • High Quality ¼” Stepped Stainless Steel EGT Weld Bungs
  • 8x- Robust ¼” EGT Probes, designed to withstand the extreme cylinder pressures
  • 4’ CAN Extension Harness
  • 8x Analog output wires, to be used with non-Holley EFI installations
View Holley EFI 8 Channel CAN EGT Kit

CAN Input/Output Module

  • Quickly expand your HP/Terminator X or even Dominator ECU’s Input / Output control with 8 additional inputs and outputs
  • This module is perfect for anyone wanting their Holley EFI ECU to control more functions or monitor more data channels
  • HP and Terminator X EFI installations with only 4 inputs and 4 outputs can now add more functionality to their EFI system!
  • The 554-165 kits contain a pre-terminated CAN Harness, allowing you to quickly install the Holley EFI CAN Module to any existing Holley EFI installation.
  • Pre-Terminated flying leads makes installing new wires a breeze.
  • Inputs can be used for things such as:
  • -Switch 12v Toggle Switches - can be configured for external mechanical relays, or setup as digital switches via a Holley EFI dash
  • - Ground input for brake pedal switch
  • -5v analog inputs for sensors like fuel pressure, oil pressure, or nitrous bottle pressure
  • -Thermistor inputs for Coolant temperature sensors
  • Outputs can be used for things such as:
  • -Switch Low (Ground) – For relay control or activation
  • -Switch Low PWM (Ground) – -Switch Low PWM (Ground) – PWM Fan control – PWM Fuel Pump control - or other PWM- controlled devices.
  • Adjustable broadcast rate for each channel - from 0-100hz.
View Holley EFI CAN Input/Output Module Kit

Sniper EFI Quick Reference Guide

Sniper EFIHP (Naturally Aspirated)HP (Power Adder)Injectors (x 100 lb/hr)Boost ControlBarrelsCFMFuel Pressure RegulatorMaster Kit Available
Sniper 26505754No4textIncludedYes
Autolite 11001751401No1800 @ 1.5" HGNot IncludedNo
23003502852No2580 @ 3" HGIncludedYes
Jeep BBD3502852No2370 @ 3" HGIncludedYes
2GC Small Bore3502852No2370 @ 3" HGIncludedYes
2GC Large Bore3502852No2370 @ 3" HGIncludedYes
Quadrajet5005754No4715 @ 1.5" HGNot IncludedYes
Super Sniper Stealth 125065012508Yes4800 @ 1.5" HGIncludedNo
Stealth 41506505754No4800 @ 1.5" HGNot IncludedNo
Stealth 4500150012508Yes41440 @ 1.5" HGNot IncludedNo

Holley EFI Comparison Table

HardwareTerminator XDominatorTerminator X MaxSniper 2
Connectors264n/a
Injector Drivers81288
Low Impedance Injector DriversNoYesNoNo
USB Port CommunicationNoYesNoNo
CAN Adapter CommunicationYesNoYesYes
Diagnostic LEDsYesNoYesNo
Knock Sensors222No
EnclosureCompositeAluminumCompositen/a
PottedNoYesNoYes
Data LoggingTerminator XDominatorTerminator X MaxSniper 2
Internal/ExternalExternal OnlyInternal and ExternalExternal OnlyExternal Only
MAP SensorTerminator XDominatorTerminator X MaxSniper 2
Internal/ExternalInternal 1 Bar or ExternalExternal OnlyInternal 1 Bar or ExternalInternal 2.5 Bar
Wideband SensorsTerminator XDominatorTerminator X MaxSniper 2
#1Up to 211
Bosch 4.2NoYesNoNo
NTKNoYesNoNo
Bosch 4.9YesNoYesYes
InputsTerminator XDominatorTerminator X MaxSniper 2
Total4504Varies
+12 VoltYesYesYesNo
GroundYesYesYesYes
+5 Volt SensorYesYesYesYes
FrequencyYesYesYesNo
ThermistorNoYesNoNo
+20 VoltNoYesNoNo
Digital SpeedNoYesNoNo
Customizable Software Inputs2080200
A/C ShutdownYesYesYesNo
OutputsTerminator XDominatorTerminator X MaxSniper 2
Total4364Varies
+12 VoltNoYesNoNo
PWM+NoYesNoNo
GroundYesYesYesYes
PWM-YesYesYesYes
Customizable Software Outputs2062200
Dual FansYesYesYesYes
Secondary Fuel PumpYesYesYesYes
IAC KickYesYesYesYes
Non-Electronic TCC ControlYesYesYesNo
Load SensingTerminator XDominatorTerminator X MaxSniper 2
VEYesYesYesYes
Speed DensityYesYesYesYes
Alpha-NYesYesYesNo
ComboYesYesYesNo
Boost ControlTerminator XDominatorTerminator X MaxSniper 2
MAP and Dome ControlNoYesNoNo
Dome ControlYesYesYesYes
Boost vs. TimeYesYesYesYes
Boost vs. RPMYesYesYesYes
Boost vs. SpeedYesYesYesNo
Boost vs. GearYesYesYesNo
Boost BuilderNoYesNoNo
Boost SafetiesYesYesYesYes
Nitrous StagesTerminator XDominatorTerminator X MaxSniper 2
Wet Non-Progressive1811
Wet Progressive1811
Dry Non-Progressive1811
Dry Progressive1811
GPOs1810
Rich/Lean Safeties
YesYesYesYes
Closed Loop to New TargetYesYesYesYes
Advanced Input StrategiesNo
YesNoNo
Advanced TablesTerminator XDominatorTerminator X MaxSniper 2
1D4844
1D Per Gear1810
2D4842
2D Per Gear1810
Traction ControlTerminator XDominatorTerminator X MaxSniper 2
Yes/NoNoYesNoNo
Water/MethTerminator XDominatorTerminator X MaxSniper 2
Yes/NoNoYesNoNo
Staging AssistTerminator XDominatorTerminator X MaxSniper 2
Yes/NoYesYesYesNo
Drive-By-WireTerminator XDominatorTerminator X MaxSniper 2
Single Throttle BodyNoYesYesNo
Dual Throttle BodyNoYesNoNo
Transmission ControlTerminator XDominatorTerminator X MaxSniper 2
GM 4L60E/70E/80ENoYesYesNo
Ford AODE/4R70WNoYesNoNo
AccessoriesTerminator XDominatorTerminator X MaxSniper 2
7 in. Digital DashYesYesYesYes
Pro DashYesYesYesYes
CAN ModulesYesYesYesNo
Analog GaugesYesYesYesYes
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EFI - Fuel Injection

From GM's factory COPO Camaro to NASCAR to your car, get the new standard in fuel injection with Holley’s fuel injection kits and EFI systems. Our systems deliver more power and a better throttle response, giving you the performance you need. Learn more at Holley.com.