SKU: 37825080419

EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body Control - USB/CAN Tuning Cable

Sale price$877.48 Regular price$974.98
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Description

EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body Control - USB/CAN Tuning CableHolley EFI Terminator X Max Gen IV 4. 8 5. 3 6. 0 GM Truck Engines and LS2 LS3 58x Crank 4x Cam EV6 Injectors Drive By Wire Throttle Body 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

Holley EFI Terminator X Max - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body 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 550-931 also has 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!

Terminator X ECU's are designed to be mounted with the LED's facing up. Designed to work with GM Throttle body P/N's - 12570790 and 12580760 Designed to work with GM Throttle Pedal P/N - 10379038

Features:
  • Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and a Drive-By-Wire Throttle Body, with EV6 Injectors.
  • 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 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.
  • 4 Outputs ???? Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
  • 4 Inputs ???? 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
  • 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: 58x/4x LS Engine Main Harness - EV6 Injector Harness - DBW Throttle Body Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted vacuum adapters.


Details:
  • Crank Reluctor: 58x
  • Ignition Type: GM LS 58x
  • Injector Connector: USCAR (EV6)
  • Terminator LS Options: Fuel, Spark, Drive-by-Wire


Links
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:
  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: 37825080419

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Shopaholic
Phoenix, US
★★★★★ 5
Excellent Quality Wire Lugs and Adhesive Heat Shrink Set
Size: 2/0 Awg - 3/8" (M10) Ring, Number of Items: 10
I recently purchased the 10pcs 2/0 AWG-3/8" Wire Lugs Ring Terminal Connectors along with the 10pcs 3:1 Dual Wall Adhesive Heat Shrink set from Amazon and I must say, I am thoroughly impressed with the quality and performance of this product! Firstly, the wire lugs are exceptionally well-made with heavy-duty materials. The copper construction ensures excellent conductivity, making them ideal for various electrical applications. The 2/0 American Wire Gauge size with a 3/8" ring terminal is perfect for my specific needs, and they fit securely on the cables, providing a reliable and sturdy connection. The wire lugs come with the corresponding 3:1 dual wall adhesive heat shrink tubes, which are an excellent addition to the set. These heat shrink tubes offer superior insulation and protection, making sure that the connection is secure and insulated against any potential damage or short-circuiting. The adhesive lining within the heat shrink tubes ensures a tight and waterproof seal, further enhancing the reliability of the connection. I found the installation process to be straightforward and hassle-free. The wire lugs are easy to crimp onto the cables, and the heat shrink tubes shrink perfectly around the connection using a heat gun. The adhesive within the heat shrink tubes bonds effectively, leaving no room for any moisture or contaminants to compromise the connection. Overall, I highly recommend the 10pcs 2/0 AWG-3/8" Wire Lugs Ring Terminal Connectors and 10pcs 3:1 Dual Wall Adhesive Heat Shrink set. The quality and performance of this product exceeded my expectations. Whether you're working on automotive projects, marine applications, or any electrical wiring projects, this set will undoubtedly fulfill your requirements. It's a fantastic value for the price, providing reliable and secure connections. I'm extremely satisfied with my purchase, and I will definitely be purchasing more in the future for my upcoming projects. Don't hesitate – give this product a try, and you won't be disappointed! Disclosure: I received no incentive or compensation for providing this review. My review is based on my personal experience as a customer.
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Reviewed in the United States on December 27, 2023
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Poppy
Massapequa, US
★★★★★ 5
Two thumbs up
Size: 1/0 Awg - 3/8" (M10) Ring, Number of Items: 4, Size: 1/0 Awg - 3/8" (M10) Ring, Number of Items: 4
Very nice battery lugs. They are not thin junk & they fit. I used a hydraulic crimper which gave me an excellent crimp. Well worth the money.
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Reviewed in the United States on April 17, 2026
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REEK
Grantham, US
★★★★★ 5
Works fine
Size: 6 Awg - 3/8" (M10) Ring, Number of Items: 10
Decent quality
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Reviewed in the United States on May 26, 2026
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Manuel
Pawtucket, US
★★★★★ 5
Item is worth every penny
Size: 4 Awg - 3/8" (M10) Ring, Number of Items: 10
Very well packaged and very good quality shrink tube super thick 😄 item is as prescribed 💯 Thank You
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Reviewed in the United States on April 25, 2026
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The Diabolical F
Louisville, US
★★★★★ 4
Good Terminals
Size: 8 Awg - 1/4" (M6) Ring, Number of Items: 10
Used to make radial wire sets for amateur radio. Good connectors with thick metal. Heat shrink is glue lined. Would purchase again.
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Reviewed in the United States on May 1, 2026

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