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Description
Holley EFI Terminator X Stealth GM LS 4150 - Gold 550-102224X Crank 4 Injectors 650 HP Features: Terminator X Stealth 4150 Kits for either 24x or 58x 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
24X Crank - 4 Injectors - 650 HP
Features:
- Terminator X Stealth 4150 Kits for either 24x or 58x 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!
- 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
- Available in 3 finishes: Shiny, Black and Gold
- Compatible with Holley EFI digital dashes, gauges and fuel system accessories
Specs:
| Accelerometer Support | Yes |
|---|---|
| Boost Control | Yes |
| Brand | Holley EFI |
| CAN-BUS Support | Yes |
| CFM | 950 |
| Coil Per Cylinder Ignition Support | Yes |
| Color | Gold |
| Crank Reluctor | 24x |
| Datalogging Support | Yes |
| Distributor Included | No |
| Dry Nitrous Control | Yes |
| e85 Support | No |
| EGT Support | Yes |
| Emission Code | 3 |
| Finish | Gold |
| Flange Size | 4150 |
| Flange Style | Squarebore |
| Forced Induction Support | Yes |
| Fuel Filter Included | No |
| Fuel Hose Included | No |
| Fuel Injectors Included | Yes |
| Fuel Pressure | 58.5 PSI |
| Fuel Pressure Regulator Included | No |
| Grade Type | Performance |
| Handheld Included | Yes |
| Ignition Timing Control | Yes |
| Ignition Type | GM LS 24x |
| Individual Cylinder Fuel Corrections | No |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 6AN |
| Intake Manifold Included | No |
| Knock Retard Support | Yes |
| MAP Sensor | 1bar |
| Max Horsepower Rating | 650 |
| Multi-Stage Nitrous Control | Yes |
| Product Type | EFI System |
| Progressive Nitrous Control | Yes |
| Self-Tuning | Yes |
| Terminator LS Options | Fuel, Spark |
| Throttle Bore | 1.75 in. |
| Throttle Position Sensor Included | Yes |
| Transmission | N/A |
| User-Tuneable | Yes |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Fun
Size: 11''x5''
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 5
It's great for food delivery and driver jobs
Size: 7''x3''
My husband got this for food deliveries and uber/Lyft. The app let him add several texts. I believe he added 4. He was able to design it how he wanted it. It seemed fairly easy and I liked how it looked. The words would scroll over, like... Uber eats, etc... It included a big roll of strong red tape. The led screen product is charged by wall plug, phone, or the car usb phone charger. I think it was a spectacular product. I thought it was limited to 4 letters since it is small in size.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Very good LED sign for cars, studios, desks, etc
Size: 1PCS 15''x4''
Great! Item really stands out. This LED sign by Ray home features way more than just devil eyes. There's a lot of pre-built templates for every gig work there is out there for your car. Item was described. A bit dim during the day but at night really shines stands out. You can customize it with uploads withdrawing. You can have programs that animate between the different signage. It's a great product for a car or for your home. To be honest, I can see a lot of uses for this. High quality design. Easy to work app. The adhesive is great for glass. It's reusable plus it comes with strips. If you want to mount it permanently not on glass. Overall a great deal.
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Reviewed in the United States on January 29, 2026
★★★★★ 4
The LED screen that speaks to the world
Size: 1PCS 23''x5''
A good way to display messages for the holidays, birthdays, or businesses. The quality is really good for the price and the variety ways to setup messages adds to the experience. It's a go to item for those who want a LED screen to display their messages to the public or personal gatherings.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great conversation starter
Size: 1PCS 15''x4''
The cutest thing for my car. Everyone turns there head when I drive by too see. Also it doesn’t have to be eyes you can change it too whatever you want !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026