SKU: 39415830956

Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit - 550-1631LSD

Sale price$1597.47 Regular price$1774.97
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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1

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Description

Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit - 550-1631LSDOverview: Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self learning fuel strategies and the proven, race winning technology of Holley EFI at a budget friendly price! Terminator X features real time fuel learn, an integrated 1bar MAP sensor, and four programmable inputs and outputs. The inputs and outputs

Overview:

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, an integrated 1bar MAP sensor, and four programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common LT engine combinations to get you out of the garage and on the road/track fast. The 3.5" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. All Gen V LT Terminator X kits will come with an external Gasoline Direct Injection Controller, which enables the end user to control and tune, factory injectors, GM Gen V LT Variable Valve Timing (VVT), and factory fuel pumps. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building, an LT swapped budget beater or a boosted racecar, Terminator X has the features and technology you need at a price that will not break the bank! To identify if your engine is an early or late application, refer to your fuel pressure sensor, located behind the intake manifold. Early sensors have a 4-pin connector, whereas late sensors have a 3-pin connector. This will help you pick which kit you require for your engine.

Features:

  • Plug and play GM Gen V LT engine control including GDI and VVT support
  • Ideal for swapping late model GM Gen V LT engines into vintage vehicles
  • 3.5” handheld gets your engine running in no time with a step-by-step calibration wizard
  • GM LS and LT Drive-by Wire Throttle Body Control (Terminator X Max Only)
  • GM 4L60 and 4L80 Transmission Control (Terminator X Max Only)
  • Included engine harness plugs directly into the factory LT DI injector sub harness
  • OEM Injectors supported, with part numbers provided in the handheld wizard, or software
  • Genuine Bosch LSU 4.9 Wideband Control (Will not work with LSU 4.2 Oxygen Sensors)
  • On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal – Cam Signal – VVT Status – Pump Control – and DI Injectors. Allowing you to identify any Critical engine issues at a glance
  • Built in 1bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths) - or for Boosted applications, you can disable the internal MAP sensor, and utilize an external LT MAP Sensor, the harness comes with the connector terminated, making the inst
  • 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
  • Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
  • Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
  • Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table
  • Integrated data logging to the 3.5” Handheld SD Card
  • Free EFI Tuning Software for complete control of your Terminator X power plant

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley EFI
Emission Code 3
Product Type EFI System
Warning California Proposition 65
Shipping Notes
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  • Delivery to the USA:
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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]
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SKU: 39415830956

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Loomis
Alexandria, US
★★★★★ 5
Finally a printer sold for the user, not the person who sells ink!!
Style: All-in-One Printer
Independent and Transparent ink refill reservoirs means no more replacing tri-color cartridge when only 1 of three is depleted. Much less ink waste! And you can just look at the printer and know how much ink is left. Brilliant. No more solid black plastic cartridges. Did not need to waste ink on a test page!! wat?! First print was a full multi-color page and didn't see ink get sucked up like a water spout; and it printed really, really fast and great color brilliance and and and... I'm so glad I spent the extra on this for my home use. I might even start printing photos for framing again. Set up was a touch time consuming (30 minutes? ) but very well instructed via the mobile app. Most of the time was just waiting for the ink to get into the printer - I think around 8 minutes?. Typically I hate that everyone wants you to download an app. I think this one was worth it. Fun extra print features. Usually I think all that is really dumb but this stuff is actually useful.
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Reviewed in the United States on May 31, 2026
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JJR
Grantham, US
★★★★★ 5
Great all around printer !
Style: All-in-One Printer, Style: All-in-One Printer
Awesome printer ! The software was a bit cumbersome at first for pc so make sure your pc and anti-virus ate updated and restart your pc and it should be a piece of cake . The ink is super easy to fill, no spills and every color spout is different so you really can't accidentally use the wrong color . It is a little bit on the loud side but not enough to complain about or remove a star especially at this price point . It's a very good price considering the amount of ink it comes with .
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Reviewed in the United States on May 17, 2026
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Kristina
Lake Worth, US
★★★★★ 5
Great value, easy set up!
Style: All-in-One Printer
So far I give this Epson Eco Tank ET-2400 a five star review. It was very easy to set up. I bought for printing some legal documents as well as personal ones. The scan feature on this epson printer is amazing. Over the last several days I have been working to upload family photos that were in a bin my mom kept that we have had from well before I was born. These photos some of them are from the 1940's. I have been able to upload probably a thousand photos so far and still am only half way through. The espon scansmart app is amazing as well. I have been uploading up to 6 photos at once depending on the size, crop them and then save them all in a few easy steps. The app is able to detect the photos very quickly and separate them perfectly. I'm so glad I bought this print and I believe the ink will last as long as they claim. Would definitely recommend to family/friends.
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Reviewed in the United States on May 17, 2026
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John Downs
Los Angeles, US
★★★★★ 5
Easy to use, Prints great!
Style: All-in-One Printer, Style: All-in-One Printer
Full disclosure, I own a Epson Ecotank at home and I bought this one for my business. I do not print a lot otherwise I would’ve bought a laser printer. For someone who doesn’t do a lot of printing it’s perfect. It prints photos flawlessly as you see in my photo I printed a photo of my grandson. I would say even if your print needs are in the middle this would be a great printer. It doesn’t use much ink at all. And now you can find off brand ink for a fraction of the price of name brand.
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Reviewed in the United States on May 9, 2026
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Tom T
Birmingham, US
★★★★★ 3
Good Printer Imposible Instructions.
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Received the printer yesterday and began the process of setting it up. First I needed to download the software and drivers. That's when the pain began. I understand wireless printers and shared network printers. In this case, I wanted to connect the printer to our home wireless network so different computers could access it. The User's Guide spends a little time on a "Wireless Direct" setup where you connect your computer wirelessly directly to the printer, but little time on a LAN printer setup. After loading all the software and drivers, I finally got the printer connected to my LAN, but it took a number of false starts and trial and errors to get the printer on the LAN to be visible to my laptop. There are essentially zero instructions about this in the user's guide. Eventually I got it to print on my laptop. Then I needed to hook it up to my wife's laptop. Again, no instructions on connecting multiple computers to the printer over a LAN. I did know enough to "share" the printer in the printer settings. I eventually installed the complete software and driver package on wife's laptop. When trying to connect wirelessly, I kept getting error codes. After a few hours, I defaulted to the USB cable installation method. Now I could at least complete the installation without errors. When I went to the list of printers on the laptop I saw the epson, but it said "offline". I think that's because what I was seeing was the USB instance of the printer, not the LAN version. I finally went to Device Manager and found a second instance of the epson printer marked "Network". I was able to make this the default and the printer would now print from both laptops. Only about 3 hours more to get a second laptop to print. Since the Epson EP 2400 is a home printer and likely to be set up for wireless operation, it should take a visit by the Geek squad to get it up and running. Epson should be ashamed of their manual and instructions. Now that it's working, it does seem to print well although a bit slow.
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Reviewed in the United States on September 27, 2023

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