1964-2023 Chevrolet Holley EFI Terminator X Stealth 4150 - Ls 24X - Black 550-1021

The Holley EFI Terminator X Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Holley EFI Terminator X ECU features fuel maps that self-learn and integrated ignition timing control, yielding improved idle stability, drivability, and horsepower at wide-open throttle! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications? Holley EFI Terminator X Max kits provide plug and play Transmission control for GM 4L60 and 4L80 Transmissions.Features:Holley EFI Terminator X Stealth 4150 Kits for either 24x or 58x LS enginesSupports up to 650HP with Four 100lb./hr. InjectorsHolley EFI Terminator X Max kits provide plug and play Transmission control for GM TransmissionsInternal 1bar MAP sensor, built into the Holley EFI Terminator X ECU.All of the wiring exits below the fuel injector bowls, for a completely stealth installationAir entry machined to fit most stock style air cleaners with air cleaner locator provisionsExternal fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886Integrated ignition timing control Plug and play with factory LS coil sub harness and OEM LS coils no external boxes/modules needed to run Coil Near PlugHigh Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge DisplaysSimple 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 dont have to be a computer/tuning wiz to have EFI!4 Inputs 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)4 Outputs Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and MoreThe included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!OEM Style TPS/IAC, for years of dependable serviceAvailable in 3 finishes: Shiny, Black and GoldCompatible with Holley EFI digital dashes, gauges and fuel system accessories

Manufacturer Part Number : 550-1021