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Holley Terminator X Stealth 4150 EFI Fuel Injection Systems

3.88 out of 5 stars 8 Customer Reviews

Holley Terminator X Stealth 4150 EFI systems feature 4 or 8, 100 lb. fuel injectors capable of supporting up to 650 hp naturally aspirated, and 600 or 1250 hp on fo

Holley Terminator X Stealth 4150 EFI systems feature 4 or 8, 100 lb. fuel injectors capable of supporting up to 650 hp naturally aspirated, and 600 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! The throttle body has the standard 4150 carburetor flange so it will bolt down where your square bore carburetor was. Holley Terminator X Stealth 4150 systems also include transmission kick-down provisions for GM TH350, TH400, 200R4, 700R4, and Ford's C4 and C6 applicat

Holley Terminator X Stealth 4150 EFI systems feature 4 or 8, 100 lb. fuel injectors capable of supporting up to 650 hp naturally aspirated, and 600 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! The throttle body has the standard 4150 carburetor flange so it will bolt down where your square bore carburetor was. Holley Terminator X Stealth 4150 systems also include transmission kick-down provisions for GM TH350, TH400, 200R4, 700R4, and Ford's C4 and C6 applications!

Results 1 - 4 of 4

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1002

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1002

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1002

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

Part Number: HLY-550-1002

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1001

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1001

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1001

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit

Part Number: HLY-550-1001

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1003

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1003

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1003

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Gold, Tunable, Kit

Part Number: HLY-550-1003

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Eight Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

Part Number: HLY-550-1005

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

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