Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Gold 534-300
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Features:
- Bolt on 2x4 4150 Flange Carburetor Replacement
- Supports up to 1500 HP naturally aspirated or 1250 HP forced induction
- (8) 100 pound per hour fuel injectors
- Internal 1 Bar MAP sensor built into the Terminator X ECU
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
- 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 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!
- OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
- Plug and play with Holley EFI Accessories, such as the 12.3Ó and 6.86Ó Pro Dash; CAN EGT; and Digital Analog style EFI gauges
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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