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Holley - Terminator X Stealth Kit 4150 2X4 - Shiny

Holley - Terminator X Stealth Kit 4150 2X4 - Shiny

The Holley Terminator X Stealth 4150 2x4 EFI system is a bolt-on carburetor replacement designed to support up to 1500 HP naturally aspirated or 1250 HP forced induction applications. Featuring eight 100 lb/hr injectors and a self-tuning ECU, it enhances idle stability, drivability, and wide-open throttle performance. ([holley.com](https://www.holley.com/products/fuel_systems/fuel_injection/terminator_x/terminator_x_and_x_max_stealth_4150/terminator_x_stealth_2x4_4bbl/parts/550-1074?utm_source=openai))
$ 2,968.95 $ 2,968.95

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Specification

Brand
Holley
Item Number
HLY550-1074
Part Name
Terminator X Stealth Kit 4150 2X4 - Shiny
Accelerometer Support
Yes
Air Metering Style
Mass Air Flow and Speed Density
Boost Control
Yes
CAN-BUS Support
Yes
CFM
950
Coil Per Cylinder Ignition Support
Yes
Color
Shiny
Datalogging Support
Yes
Distributor Included
No
Dry Nitrous Control
Yes
E85 Support
No
EGT Support
Yes
Emission Code
3
Finish
Shiny
Flange Size
4150
Flange Style
Squarebore
Forced Induction Support
Yes
Fuel Filter Included
No
Fuel Hose Included
No
Fuel Injection Type
Sequential and Batch Fire
Fuel Injectors Included
Yes
Fuel Pressure
58.5 PSI
Fuel Pressure Regulator Included
No
Fuel Pump Flow Rating
N/A
Fuel Pump Included
No
Fuel Pump Type
N/A
Grade Type
Performance
Handheld Included
Yes
Idle Air Control Motor Included
Yes
Ignition Timing Control
Yes
Ignition Type
Universal
Individual Cylinder Fuel Corrections
No
Injector Size
100 lb/hr @ 58.5 PSI
Inlet / Outlet Size
6AN
Intake Manifold Included
No
Knock Retard Support
Yes
MAP Sensor
1 Bar
Max Horsepower Rating
1500+
Multi-Stage Nitrous Control
Yes
Product Type
EFI System
Progressive Nitrous Control
Yes
Self-Tuning
Yes
Terminator LS Options
Fuel, Spark
Throttle Body Finish
Polished
Throttle Body Material
Aluminum
Throttle Bore
1.75 in.
Throttle Position Sensor Included
Yes
Traction Control Support
Yes
Transmission
N/A
User-Tuneable
Yes
Wet Nitrous Control
Yes

Description

Upgrade your vehicle's performance with the Holley Terminator X Stealth 4150 2x4 EFI system. This advanced fuel injection system replaces traditional carburetors, offering a seamless bolt-on installation for 4150 flange applications. Equipped with eight 100 lb/hr injectors, it supports up to 1500 HP naturally aspirated or 1250 HP with forced induction. The self-learning ECU simplifies tuning, while integrated ignition timing control ensures optimal performance. Additional features include a high-resolution full-color touchscreen for setup and monitoring, an internal 1-bar MAP sensor, and compatibility with various Holley EFI accessories. An external fuel pressure regulator set to 58.5 PSI is required for operation. ([holley.com](https://www.holley.com/products/fuel_systems/fuel_injection/terminator_x/terminator_x_and_x_max_stealth_4150/terminator_x_stealth_2x4_4bbl/parts/550-1074?utm_source=openai))

Disclaimer

This product is legal for sale and use on uncontrolled (non-emissions controlled) vehicles. It is not intended for use on emissions-controlled vehicles. Please verify local regulations before installation. ([holley.com](https://www.holley.com/products/fuel_systems/fuel_injection/terminator_x/terminator_x_and_x_max_stealth_4150/terminator_x_stealth_2x4_4bbl/parts/550-1074?utm_source=openai))