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Holley Terminator X Stealth 4500 EFI Fuel Injection Systems 550-1071 Systems, X, EFI, Eight Injector, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

SKU: HLY550-1071

Fuel Injection Systems

Holley Terminator X Stealth 4500 EFI Fuel Injection Systems 550-1071 Systems, X, EFI, Eight Injector, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

SKU: HLY550-1071

Fuel Injection Systems
A$5,916.20
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley Terminator X Stealth 4500 EFI systems feature eight 100 lb. fuel injectors capable of supporting up to 1,500 hp naturally aspirated or 1,250 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! They are designed to fit with Gen 3 Ultra Dominator air cleaners and fuel crossovers, enabling you to easily convert your 4500 equipped 800+ horsepower dragster or door car. Choose from a black or polished aluminum body.

Part Type

Terminator X Stealth 4500 - 8 Injectors Black

Data: v4.2 - Upd: 2026-10-14 02:05:59

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
550-1071
Product Attributes - Part Type
Fuel Injection Systems
Product Attributes - Product Line
Holley Terminator X Stealth 4500 EFI Fuel Injection Systems
Product Attributes - UPC
090127105252
Product Attributes - Fuel Injection Style
Throttle body
Product Attributes - Fuel Injection System Type
Single 4-Barrel Throttle Body (4500 Flange)
Product Attributes - Maximum Horsepower with Gas
1,500
Product Attributes - Timing Control Compatible
Yes
Product Attributes - ECM Included
Yes
Product Attributes - Self Tuning
Yes
Product Attributes - User Tunable
Yes
Product Attributes - Fuel System Included
None
Product Attributes - Ignition System Included
None
Product Attributes - Power Distribution Included
None
Product Attributes - User Interface Included
3.5 in. display
Product Attributes - EGR
No
Product Attributes - Transmission Controller Included
No
Product Attributes - Metering Style
Speed density
Product Attributes - Multi-Port Fuel Rails Included
No
Product Attributes - Throttle Body Included
Yes
Product Attributes - Throttle Body Mounting Flange
4500 Dominator
Product Attributes - Venturi Quantity
4
Product Attributes - Venturi Diameter (mm)
53.98mm
Product Attributes - Airflow Rate (cfm)
1,440 cfm
Product Attributes - Throttle Body Material
Cast aluminum
Product Attributes - Throttle Body Color
Black
Product Attributes - Injectors Included
Yes
Product Attributes - Injector Size (lbs/hr)
100 lbs./hr.
Product Attributes - Calibration Module Included
Yes
Product Attributes - Wiring Harness Included
Yes
Product Attributes - Oxygen Sensor Included
No
Product Attributes - Fuel Pressure Regulator Included
No
Product Attributes - MAP Sensor Included
Yes
Product Attributes - IAT Sensor Included
Yes
Product Attributes - TPS Sensor Included
Yes
Product Attributes - IAC Motor Included
Yes
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
External fuel pressure regulator required, set to a base pressure of 58.5 psi.

Reference Information

Brand Name/s Holley
StreetFX SKU hly550-1071
SFX Item ID 4782450
Supplier Item Code 4782450
Manufacturer SKU 550-1071
Manufacturer UPC 90127105252
Alternative References HOL550-1071

Compatibility

Application Data
  • UniversalYes
    Fuel TypeGAS

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