Holley EFI Terminator X Stealth 4150 – Shiny

Holley EFI Terminator X Stealth 4150 – Shiny

The Holley EFI Terminator X Stealth 4150 – Shiny is a bolt-on EFI system designed to replace 4150 flange carburetors on American V8 engines. It supports up to 650 horsepower naturally aspirated and 600 horsepower with forced induction, delivering improved idle stability, drivability, and wide-open throttle power with integrated ignition timing control and self-learning fuel mapping.

Key Features

• Bolt-on 4150 flange carburetor replacement with shiny finish
• Four 100 lb/hr injectors supporting up to 650 HP naturally aspirated
• Integrated ignition timing control for better idle and performance
• Self-tuning ECU with high-resolution full-color touchscreen, no laptop required
• Internal 1 bar MAP sensor and wideband oxygen sensor for real-time fuel map learning
• Transmission kickdown provisions for GM TH350/400, 200R4/700R4, and Ford C4/C6
• CAN-BUS support, datalogging, boost control, and nitrous control included
• Includes throttle position sensor and genuine Bosch LSU 4.9 wideband O2 sensor

Fitment

• Direct replacement for 4150 flange squarebore carburetors
• Fits most American V8 engines with 1.75-inch throttle bore

Note: External fuel pressure regulator (58.5 PSI) required; Holley part #12-886 recommended. Verify transmission compatibility before ordering. Installation requires tuning and supporting components not included.