Holley EFI 550-1028 Terminator Max X Stealth 4150 24x w/Trans Control - Shiny Finish
Product details
| Management number | 254267759 | Release Date | 2026/11/07 | List Price | US$1,179.98 | Model Number | 254267759 | ||
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Compatible with vehicles equipped with GM LS engines with 24x reluctor wheel configuration.;<br><br>The 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 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? Terminator X Max kits provide plug and play Transmission control for GM 4L60 and 4L80 Transmissions.;
- Terminator X Stealth 4150 Kits for 24x LS engines
- Supports up to 650HP with Four 100lb./hr. Injectors
- Terminator X Max kits provide plug and play Transmission control for GM Transmissions
- Internal 1bar MAP sensor, built into the Terminator X ECU.
- All of the wiring exits below the fuel injector bowls, for a completely stealth installation
- Air entry machined to fit most stock style air cleaners with air cleaner locator provisions
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886
- Integrated 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 Plug
- 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!
- 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 More
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC, for years of dependable service
- Compatible with Holley EFI digital dashes, gauges and fuel system accessories
| Compatible cars | vehicles equipped with GM LS engines with 24x reluctor wheel configuration |
|---|---|
| Vehicle make | GM |
| Vehicle model | LS |
| Fuel injection accessory & part type | Terminator X Stealth 4150 EFI system |
| Brand | Holley EFI |
| Vehicle fitment type | Specific |
| Items included | Bosch LSU 4.9 Wideband Oxygen Sensor |
| Accessories | Genuine Bosch LSU 4.9 Wideband Oxygen Sensor |
| Series | Terminator Max X Stealth 4150 |
| Model | 550-1028 |
| Weight | 20.58 lb |
| Has written warranty | No |
| Vehicle type | Car |
| Volts | 12 Volts |
| Multipack quantity | 1 |
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