Holley EFI Terminator X Stealth 4150 2×4 – Gold

Holley EFI Terminator X Stealth 4150 2×4 – Gold

The Holley EFI Terminator X Stealth 4150 2×4 – Gold is a high-performance EFI system designed as a direct bolt-on replacement for 4150 flange carburetors. It supports up to 1500 HP naturally aspirated or 1250 HP forced induction with eight 100 lb/hr injectors and features self-tuning capabilities for easy setup and improved drivability. Ideal for domestic V8 enthusiasts seeking reliable power and advanced engine control.

Key Features

• Includes 8 high-flow 100 lb/hr fuel injectors rated at 58.5 PSI
• Integrated ignition timing control and boost control support
• High-resolution full-color touchscreen for setup, tuning, and gauges
• Self-learning fuel map and simple calibration wizard—no laptop required
• Genuine Bosch LSU 4.9 wideband oxygen sensor for real-time fuel map learning
• Internal 1 bar MAP sensor built into the ECU
• Plug and play compatibility with Holley EFI accessories and CAN-BUS support
• Bolt-on 2×4 4150 squarebore flange design with universal ignition type

Fitment

• Direct replacement for 4150 flange carburetors on domestic V8 engines
• Supports naturally aspirated and forced induction setups up to 1500+ HP

Note: External fuel pressure regulator (58.5 PSI) required; not included. Verify compatibility before ordering. Installation requires basic mechanical skills and tuning knowledge, though self-tuning simplifies setup.