Terminator X Stealth 4500 EFI Kit

SKU: 550-107X Category:



The Terminator X Stealth 4500 EFI system 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! Designed to fit with Gen 3 Ultra Dominator air cleaners and fuel crossovers, allowing you to easily convert your 4500 equipped 800+ horsepower dragster or door car!

– Bolt on 4500 Flange Carburetor Replacement
– Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
– 2.125” Throttle Plates, Flow 1440 CFM for large cubic inch engines
– Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options
– External fuel pressure regulator required, such as 12-848
– Integrated ignition timing control
– High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
– 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!
– Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
– OEM Style TPS/IAC, for years of dependable service.
– Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
– Built in 1bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths) – or for Boosted applications, you can disable the internal MAP sensor, and utilize an -external MAP Sensor, the harness comes with the connector terminated, making the install
– Plug and play with Holley EFI Accessories, such as the 12.3” and 6.86” Pro Dash; CAN EGT; and Digital Analog style EFI gauges
– Available in 2 finishes, Shiny and Black

Additional information

Finish Option

Black, Polished


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