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Holley Terminator X Stealth 4150 2X4 EFI Fuel Injection Systems

1.0 out of 5 stars 1 Customer Reviews

Holley Terminator X Stealth 4150 2x4 EFI systems feature eight 100 lb./hr. fuel injectors capable of supporting up to 1500 hp naturally aspirated or 1250 hp on forc
Holley Terminator X Stealth 4150 2x4 EFI systems feature eight 100 lb./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.

Features:

* Bolt-on 2x4 4150 flange carburetor replacement
* Internal 1bar MAP sensor, built into the Terminator X ECU
External fuel pressure regulator required, set to a base pressure of 58.5 psi
* Integrated ignition timing control
* High-resolution, full colo
Holley Terminator X Stealth 4150 2x4 EFI systems feature eight 100 lb./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.

Features:

* Bolt-on 2x4 4150 flange carburetor replacement
* Internal 1bar MAP sensor, built into the Terminator X ECU
External fuel pressure regulator required, set to a base pressure of 58.5 psi
* Integrated ignition timing control
* High-resolution, full color touch screen 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 without the use of a laptop
* Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI
* Genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time Fuel Map Learn
* OEM-style TPS/IAC and Fuel Pressure regulator, for years of dependable service
* Weld-in oxygen sensor bung for the exhaust ensures a leak-free oxygen sensor install
* Plug-and-play with Holley EFI accessories
* Available in three finishes: Shiny, Black, and Gold

Results 1 - 2 of 2

Fuel Injection Systems, Terminator X, Stealth 4150, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit

Part Number: HLY-550-1074

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Fuel Injection Systems, Terminator X, Stealth 4150, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Gold, Tunable, Kit

Part Number: HLY-550-1076

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

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Estimated Ship Date: Dec 23, 2025 if ordered today

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