Skip to main content
550-1071 - Holley EFI 550-1071 Terminator X Stealth 4500 - Black Ceramic Finish Image
Holley Sniper EFI

Holley EFI 550-1071 Terminator X Stealth 4500 - Black Ceramic Finish

Part # 550-1071 Be the first to write a review

8 Injector - 800-1500 HP

Read More

Holley EFI 550-1071 Terminator X Stealth 4500 - Black Ceramic Finish

Free Shipping

In Stock

$2,591.95

The Terminator X Stealth 4500 EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU has the same capabilities as the original Sniper EFI ECU with fuel map self-learning, ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower. But Terminator X offers even more tuneability and additional features like: Diagnostic LEDs Abiliity to run Knock Sensors Lockup Torque Converter Control for non-electronic transmissions Twenty (20) Customizable Software Inputs and Outputs A/C Shutdown Boost vs. Speed Boost vs. Gear General Purpose Outlet (GPO) that can allow for Nitrous Stage Control Staging Assist. Designed to fit with Gen 3 Ultra Dominator air cleaners and fuel crossovers, allowing you to easily convert your 4500 equipped 800+ horsepower dragster or door car to fuel injection so you can get tuneability with a few clicks instead of disassembling that Dominator Carb!

Features:

  • Bolt on 4500 Flange Carburetor Replacement
  • Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
  • Compatible with Draw through or Blow through forced induction applications
  • 2.125" Throttle Plates, Flow 1440 CFM for large cubic inch engines
  • Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options
  • Required external fuel pressure regulator, 12-848 is recommended
  • Integrated ignition timing control
  • -8 AN Fuel Inlets
  • 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
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • OEM Style TPS/IAC, for years of dependable service.
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn
  • Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
  • Built in 1 bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths) - or for Boosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the instal
  • Plug and play with Holley EFI Accessories, such as the 12.3” and 6.86” Pro Dash; CAN EGT; and Digital Analog style EFI gauges
  • Available in 2 finishes, Shiny and Black
Brand Holley Sniper EFI
Emission Code3
Product TypeThrottle Body Fuel Injection Systems
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127105252
Manufacturer Part Number550-1071
Part Number550-1071
3

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

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

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
Not for use with engines producing less than 800 horsepower<BR>Gasoline Only<BR>Use of leaded race fuels may shorten the service life of the WBO2 sensor
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details

Have a question about this product?

    Load More

    We Suggest

    Reviews

      Your Review

      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.

      Holley EFI 550-1071 Terminator X Stealth 4500 - Black Ceramic Finish
      Holley EFI 550-1071 Terminator X Stealth 4500 - Black Ceramic Finish
      $2,591.95