Hero image 0 of Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black, 0 of 11

Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black

Name: Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black
Brand: HOLLEY EFI
SKU: 826791817
Price: 3749.95 USD
Availability: InStock

(No ratings yet)

Check if this fits your vehicle

Key item features

Flange Compatibility: Bolts directly onto 4500 flange 2x4 intake manifolds, serving as a carburetor replacement.
Power Support: Supports up to 1500 HP naturally aspirated or 1250 HP with forced induction, utilizing eight 100 Lb/Hr injectors.
Airflow Design: Features 2.125 throttle plates, each flowing 1440 CFM, suitable for large cubic inch engines.
ECU Capabilities: The self-tuning ECU offers fuel map learning, ignition timing control, and includes a genuine Bosch LSU 4.9 Wideband Oxygen Sensor.
Setup Simplicity: Initial setup and tuning are managed via a high-resolution full-color touchscreen with a simple calibration wizard, eliminating the need for a laptop.
Accessory Integration: Plug and play compatibility with Holley EFI accessories like Pro Dashes, CAN EGT, and digital analog style EFI gauges.
Universal Harness: Includes a universal engine harness for broad compatibility across various engine combinations.

Generated by AI

Specs

Vehicle model
550-1081
Vehicle fitment type
Universal
Brand
HOLLEY EFI
Features
Adjustable
Finish
Black
Color
Black

Current price is $3,749.95

Price when purchased online

Free shipping
Free 90-day returns

How do you want your item?

I want delivery savings with

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.

How do you want your item?

Columbus, 43215

Arrives by Mon, Feb 16

Sold and shipped by Walmart.com

Free 90-day returns

This item is gift eligible

Get free delivery, shipping and more*

*Restrictions apply

Try Walmart+ now

Compare with similar items

Comparison Overview:
Product	Viewing this item Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black current price $3,749.95 Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black	Holley EFI 550-500 HP EFI Universal MPI Retrofit Kits current price $3,749.95 Holley EFI 550-500 HP EFI Universal MPI Retrofit Kits	Holley EFI 550-616N HP EFI ECU & Harness Kits current price $3,399.95 Holley EFI 550-616N HP EFI ECU & Harness Kits	Holley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit current price $3,149.95 Holley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit	Holley EFI 550-617N HP EFI ECU & Harness Kits current price $3,399.95 Holley EFI 550-617N HP EFI ECU & Harness Kits	Holley EFI 558-453 CAN Adapter Harness - 8 Foot Length current price $67.49 Holley EFI 558-453 CAN Adapter Harness - 8 Foot Length	Holley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish current price $98.95 Holley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish	Holley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish current price $53.55 Holley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish	Holley EFI 300-652 Holley Intake Manifold Adapter Plates current price $409.95 Holley EFI 300-652 Holley Intake Manifold Adapter Plates	Holley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT current price $3,249.95 Holley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT

Comparison Chart:
Vehicle model	550-1081Holley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black	550-500Holley EFI 550-500 HP EFI Universal MPI Retrofit Kits	550-616NHolley EFI 550-616N HP EFI ECU & Harness Kits	Gen V LTHolley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit	550-617NHolley EFI 550-617N HP EFI ECU & Harness Kits	LSHolley EFI 558-453 CAN Adapter Harness - 8 Foot Length	CoyoteHolley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish	CoyoteHolley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish	RAM 1500Holley EFI 300-652 Holley Intake Manifold Adapter Plates	CoyoteHolley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT
Vehicle fitment type	UniversalHolley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black	SpecificHolley EFI 550-500 HP EFI Universal MPI Retrofit Kits	SpecificHolley EFI 550-616N HP EFI ECU & Harness Kits	SpecificHolley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit	SpecificHolley EFI 550-617N HP EFI ECU & Harness Kits	SpecificHolley EFI 558-453 CAN Adapter Harness - 8 Foot Length	SpecificHolley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish	SpecificHolley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish	SpecificHolley EFI 300-652 Holley Intake Manifold Adapter Plates	SpecificHolley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT
Features	AdjustableHolley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black	UniversalHolley EFI 550-500 HP EFI Universal MPI Retrofit Kits	-Holley EFI 550-616N HP EFI ECU & Harness Kits	HandheldHolley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit	-Holley EFI 550-617N HP EFI ECU & Harness Kits	-Holley EFI 558-453 CAN Adapter Harness - 8 Foot Length	AdjustableHolley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish	SwivelHolley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish	-Holley EFI 300-652 Holley Intake Manifold Adapter Plates	ProgrammableHolley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT
Finish	BlackHolley EFI 550-1081 Terminator X Stealth 4500 2x4 Kit - Black	MachinedHolley EFI 550-500 HP EFI Universal MPI Retrofit Kits	-Holley EFI 550-616N HP EFI ECU & Harness Kits	-Holley EFI 550-1611 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit	-Holley EFI 550-617N HP EFI ECU & Harness Kits	MachinedHolley EFI 558-453 CAN Adapter Harness - 8 Foot Length	SatinHolley EFI 300-924 Ultra Lo-Ram Throttle Body Adapter Coyote - As Cast Finish	BlackHolley EFI 534-321 180 Degree Fuel Fitting Assembly - Black Finish	MachinedHolley EFI 300-652 Holley Intake Manifold Adapter Plates	-Holley EFI 550-1510 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCT

Now hiding additional rows in the Table

About this item

Product details

Terminator X Stealth 4500 2x4 with 8 Injectors - Supports 800-1500 Horsepower;

The Terminator X Stealth 4500 2x4 EFI systems 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 is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! 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! The Terminator X Stealth 4500 Air Valves are perfect for Multi-Port Fuel Injection installations that want the look of a 4500 Dominator Carburetor. These 1440 CFM air valves also include a TPS sensor for easy installation on most intake manifold configurations.;

Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds
Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
2.125” Throttle Plates, Flow 1440 CFM each for large cubic inch engines
Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options
Throttle Linkage not included
Each throttle body contains 4x 100lb/hr fuel injectors
Universal engine harness allows you to easily install the Terminator X 2x4 4500 system on a wide variety of engine combinations
Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger)
High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
External fuel pressure regulator required, such as 12-848
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!
The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
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