SKU: 79993456502

Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit - 550-1611

Sale price$1484.97 Regular price$1649.97
Save 10%

Pay in installments of $412.49 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit - 550-1611Overview: 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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 79993456502

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
JnJ
Grantham, US
★★★★★ 5
Just what my daughter was looking for
Color: White
They look cute for my daughters room
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
P
Verified Purchase
peloew
Waukegan, US
★★★★★ 3
not best quality, but does its job
Color: White
super easy to put up on the wall of my bedroom, and help it look less cluttered. appearance wise they look great, but quality wise one of the shelves was already starting to fall apart from the stand, almost as if it needed to be glued or secured better? it was super loose and kinda cheap feeling/looking just based on the one shelf falling apart. it's just okay.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
W
Verified Purchase
Whitny Ybarra (1)
Grantham, US
★★★★★ 5
I’d buy again for sure and might need more sooner then later
Color: Natural
These are nice and sturdy and just the right size also! Very easy to put up yoo
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
N
Novistorian
Lexington, US
★★★★★ 4
Great Storage Solution
Color: White, Color: White
These 16’’ White Floating Shelves are truly wonderful for organizing and displaying items in any room. I’m currently using them in my craft room to store paint, and they have made it so much easier to keep everything tidy and accessible. The shelves are versatile enough for the bedroom, bathroom, living room, or nursery. Installation was straightforward and the shelves feel sturdy, holding a good amount of weight while maximizing wall space. I’m giving four stars because the finish isn't quite as clean as shown in the listing photos—there are some minor imperfections in the look. Just as a note, the picture I’m including is taken right after installation, before adding the finishing touches. You can see where there are gaps along the seams (not talking about between the two shelves). The shelves do come with stickers to cover the screw holes, but I haven’t added them yet. Overall, these shelves are a practical addition to any home.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
M
Verified Purchase
MBR
Los Angeles, US
★★★★★ 5
Great quality
Color: Rustic Brwon, Size: 16in
Hassle but they work great. I love the color, the thickness and quality. They do have some weight but in my opinion, I prefer that. Right now the four shelves are holding up my WiFi routers and remotes. Will buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

recommand products