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Description
EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control - USB/CAN Tuning CableHolley EFI Terminator X Max LS1 LS6 24x Crank 1x Cam EV6 Injectors Drive By Wire Throttle Body and Transmission Control 3. 5 in. Touchscreen Overview Take control of your LS engine with Terminator X Max! Don't settle for a junkyard 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 Max
Holley EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control - 3.5 in. Touchscreen
Overview
Take control of your LS engine with Terminator X Max! Don't settle for a junkyard 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 Max features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Part number 550-926 also has 4L60E or 4L80E Transmission control and Drive-By Wire Throttle Body control. Terminator X Max comes fully loaded with base maps for common LS 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. 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 a budget beater or a boosted race car, Terminator X MAX has the features and technology you need at a price that won't break the bank!
Not recommended for 4x4 applications with electronic transfer cases. Not compatible with 4L6X transmissions from model year 1995 or before due to year-by-year changes in converter lockup and downshift strategy.
Features:
- For GM LS1/LS6 engines with 24x crank reluctor with EV6 injectors and 4L60E/4L80E transmissions, and drive-by wire throttle body control.
- Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
- High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
- All of the new Terminator X Max systems utilize the Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.
- On-Board 1bar MAP sensor, is perfect for N/A or Nitrous engine combos. If your combination requires a 2+Bar, we recommend GM 12592525, and our adapter part number 558-416.
- MAP Sensor vacuum hose adapters (1/8th ???? ?? and 3/16ths)
- 4 Inputs ???? 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
- 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, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
- On-Board Diagnostic LEDS for: ECU Power ???? Engine Run ???? Wideband Status ???? TPS Calibration ???? Crank Signal ????Cam Signal. Allow you to identify any Critical engine issues at a glance
- Includes CAN/USB tuning cable allowing you to configure your ECU and Tuning the engine in real time.
- The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!
- Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!
- Free EFI Tuning Software for complete control of your Terminator X power plant
- Recommended Pedal part number - 10379038
- Includes: 24x LS Engine Main Harness - EV6 Injector Harness - DBW Throttle Body Harness - 4L60E/4L80E Transmission Control Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted
Details:
- Crank Reluctor: 24x
- Ignition Type: GM LS 24x
- Injector Connector: USCAR (EV6)
- Terminator LS Options: Fuel, Spark, Drive-by-Wire, Transmission
Links
Instruction Sheet
Instruction Sheet
Instruction Sheet
Instruction Sheet
Parts Guide
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]
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Good product.
Color: Red Oak, Size: 1"x 25ft
Exactly what is stated in description. Worked perfectly for what I needed and easy to utilize.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Perfect Repair
Color: Cherry, Size: 2.4"x 15ft
We purchased a used secretary with hutch, and it had some damage on the veneered decoration on the hutch doors. I discovered this product and ordered the closest match I could find. It was easy to cut to fit and the price was amazing. It looks so good that you could not easily find the repair and I am very happy.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Professional look overall
Color: Birch, Size: 1/2"x 25ft
Installing the edging worked best with a heat gun vs a blow dryer, Adhesive was average, some areas adhered well while some spots kept lifting.
The areas where the edging is connected to create the continuous link are very visible and will not blend well when painted. I had more waste by trying to avoid these sections.
The edging is easy to cut. I used 220 sand paper to blend the areas where the edging was too wide for the project edge after trimming. Be careful not to over sand the edging. I found both the 1/2 in and 3/4 in are both wider than 1/2 in and 3/4 in plywood. Expect extra time to trim the excess.
The edging is flexible and easy to use when working with curved edges.
Overall, the edging still gave my projects a professional look.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
A Good Solution for Rough Edges of Wood.
Color: Birch, Size: 1"x 25ft, Color: Birch, Size: 1"x 25ft
This is a great product. We needed to recover the booth in our motorhome because the faux leather is peeling. The booth is made of plywood and has rough edges. We opted to cover the booth with heavy wallpaper, but needed something to cover the rough edges. This product is really affordable and very easy to use. It adheres pretty well. We had planned on painting the wood veneer edging, but we decided that the wood tone fit right in with the rest of the trim in the motorhome so we left it raw. While I bought 1" because that is mostly what we needed, some other areas were only 3/4" wide. It was so easy to run an Exacto knife along the extra edge and trim it smoothly.
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Reviewed in the United States on October 10, 2025
★★★★★ 5
Effective tool
Color: Red Trimmer, Size: 4.1"x 2.25"
Simole tool. Does the job. Blades need to be sharp.
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Reviewed in the United States on May 14, 2026