Holley 550-1074 EFI Terminator X Stealth 4150 2x4 - Shiny

8 Injectors - 800-1500 HP

Part Number: 550-1074

The Terminator X Stealth 4150 2x4 EFI systems from Holley features 8, 100LB/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 and Benefits

• The included 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
• Plug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P/N's 553-106, 553-111, and 553-112)
• Bolt on 2x4 4150 Flange Carburetor Replacement
• Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
• Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
• Integrated ignition timing control
• Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
• External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
• High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
• Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
• Internal 1bar MAP sensor, built into the Terminator X ECU