Holley EFI Terminator X Stealth 2x4 4500 Kit - Black 550-1081
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Features:
- Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds
- Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
- 2.125Ó Throttle Plates, Flow 1440 CFM each 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
- Throttle Linkage not included
- Each throttle body contains 4x 100lb/hr fuel injectors
- Universal engine harness allows you to easily install the Terminator X 2x4 4500 system on a wide variety of engine combinations
- Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger)
- 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 donÕt have to be a computer/tuning wiz to have EFI!
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
- 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)
About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!
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