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Description
Holley EFI Terminator X Stealth 2x4 4500 Kit - Black 550-10818 Injectors 800 1500 HP Features: Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds1 Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb Hr Injectors2 2. 125? Throttle Plates, Flow 1440 CFM each for large cubic inch engines3 Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options4 External fuel pressure regulator required, such as 12 8485 Throttle Linkage
8 Injectors - 800-1500 HP
Features:
- Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds1
- Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors2
- 2.125? Throttle Plates, Flow 1440 CFM each for large cubic inch engines3
- Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options4
- External fuel pressure regulator required, such as 12-8485
- Throttle Linkage not included6
- Each throttle body contains 4x 100lb/hr fuel injectors7
- Universal engine harness allows you to easily install the Terminator X 2x4 4500 system on a wide variety of engine combinations8
- Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger)9
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays10
- 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!11
- Self-tuning ECU means you don?t have to be a computer/tuning wiz to have EFI!12
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!13
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation14
- Plug and play with Holley EFI Accessories, such as the 12.3? and 6.86? Pro Dash; CAN EGT; and Digital Analog style EFI gauges15
- Available in 2 finishes, Shiny and Black16
Specs:
| Accelerometer Support | Yes |
|---|---|
| Boost Control | Yes |
| Brand | Holley EFI |
| CAN-BUS Support | Yes |
| CFM | 2880 |
| Coil Per Cylinder Ignition Support | Yes |
| Color | Black |
| Datalogging Support | Yes |
| Distributor Included | No |
| Dry Nitrous Control | Yes |
| e85 Support | No |
| EGT Support | Yes |
| Emission Code | 3 |
| Finish | Black |
| Flange Size | 4500 |
| Flange Style | Dominator |
| 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 | Universal |
| Individual Cylinder Fuel Corrections | No |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 8AN |
| Intake Manifold Included | No |
| Knock Retard Support | Yes |
| MAP Sensor | 1bar |
| Max Horsepower Rating | 1500+ |
| Multi-Stage Nitrous Control | Yes |
| Product Type | EFI System |
| Progressive Nitrous Control | Yes |
| Self-Tuning | Yes |
| Terminator LS Options | Fuel, Spark |
| Throttle Bore | 2.125 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
4.3 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Work as expected
Style: 4-in-1 USB-C Hub
Work as expected. Plug and play. For a USB-C hub, worth the price. Had no compatibility issues with my PC and a laptop. Haven't noticed any heat issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Reliable, easy to use, and perfect for expanding ports on a MacBook
Color: Dark Red
This hub has been incredibly useful and very easy to use. I use it all the time with my MacBook and iPhone for transferring files, backing things up, and connecting multiple devices without constantly swapping cords around.
I really like the variety of ports included. Everything connects seamlessly and it has made working off my laptop so much more convenient. It’s compact enough to travel with but still gives you all the extra connections you need.
Definitely one of those accessories you don’t realize how much you need until you have it.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Works perfectly!
Color: Black, Color: Black
I was replacing my old one (Acer) because it would glitch out sometimes and not work how it should and I would have to mess with it to get it to work, I have an external keyboard, mouse and monitor for my MacBook Air and the dongle was perfect, I was able to plug everything in and it worked right away, with no problem!
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Very good hub and great customer support.
Color: Space grey
I've been using this Hiearcool USB-C hub with my MacBook for work and daily use, and it does exactly what it promises. All the ports work well (HDMI, USB, SD card, and charging), and it's very convenient for office and travel. At one point, I had an issue under regular use and contacted their support. They were responsive and helpful, and they assisted me quickly with a solution, which I really appreciated. Overall, it's a solid hub for the price, reliable, and backed by good customer service. I'd definitely recommend it.
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Reviewed in the United States on January 4, 2026
★★★★★ 4
NOKIA OF USB C HUBS
Color: Space grey
Howdy y’all, the only reason I’m doing a four star review is to keep it real.
The only annoying thing with the adapter when you plug it in kind of flops goes all over the place, but that is easily remedied by how useful it is. I’ve worked at Best Buy. I study software. I like my tech to be reliable and last, this adapter has not disappointed me the last almost 4 years now! It looks the same as pictured, maybe a couple scratches now but it has held up incredibly well. I initially got so I can connect my monitor and my mouse to my MacBook Pro and that continues to be my main use for it.
I’ve discovered it also works great at connecting to my iPad Air for extending the screen, mirroring, or using my mouse. It also works great for transferring data to other USB-C compatible devices like a Samsung phone! This thing has been reliable, I’ve used it to connect to external storage drives, SD cards, microSD cards. I keep finding new uses for it. It practically lives in my work bag all the time now. Also, I’ve only had it get somewhat warm like probably 2-3 times in my entire time of using it.
The reason I come back to review after all these years is my younger sibling asked if they could have my adapter and I’ve never felt so firmly in saying absolutely not. I’m grateful that you can still buy this because a lot of things I’ve purchased on Amazon haven’t lasted. When you find something good like this, especially in this day where things are built to break, you can’t help but appreciate the things that are reliable and consistent.
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Reviewed in the United States on May 27, 2026