Holley EFI Terminator X GM Gen V LT Late Direct Injection Kit - 550-1601
SKU: 75120049946

Holley EFI Terminator X GM Gen V LT Late Direct Injection Kit - 550-1601

Sale price$1237.47 Regular price$1374.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley EFI Terminator X GM Gen V LT Late Direct Injection Kit - 550-1601Overview: 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: 75120049946

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 2204 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Deb G
Phoenix, US
★★★★★ 5
Works great
Color: Square Tissue Box-retro
I bought this to prevent our puppy from chewing up the Kleenex boxes. Worked like a charm and looks good too. Not flimsy, nice quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
M
Verified Purchase
Mrs. Hawkins
Lake Worth, US
★★★★★ 5
Beautiful and well made
Color: Rectangular Tissue Box-retro
Such a beautiful and well made kleenex box. I absolutely love mine. I ordered 2 more after receiving my 1st one for my office. Easy to get the box in. Looks so nice and the kleenex feeds out of it easily. I even ordered my parents one for their office as a gift.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
K
Verified Purchase
KY-Barbara
San Leandro, US
★★★★★ 5
Very Pretty and Nice Addition to my Living Room
Color: Square Tissue Box-retro
These look nice and were reasonably priced. Putting my tissue boxes in these holders also stopped my dog from tearing up boxes of tissues (he likes to tear up paper). he has not bothers these. They help the tissues blend into the decor without the distractions of the funky colors on the cardboard boxes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
R
Verified Purchase
RONNA FIELD
Fort Morgan, US
★★★★★ 5
High Quality!
Color: Rectangular Tissue Box-retro
This tissue box is high quality, elegant, and it was packaged nicely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
J
Verified Purchase
J. Luck
Chelsea, US
★★★★★ 5
Like it so much. I've got a second one
Color: Square Tissue Box-retro
Liked it so much. I've got a second one. This tissue box cover is so elegant and beautiful that I bought another one. The bottom snaps in place very nice and the threading around the box is beautifully done. The brown color goes very well with all of our oil rub bronze pictures in the house. It is very elegant and I just love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026

recommand products