SKU: 87210950906

Terminator X Max 58x/4x EV1 LS MPFI & DBW Throttle & Trans w/o Handheld 550-935T

Sale price$967.47 Regular price$1074.97
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Terminator X Max 58x/4x EV1 LS MPFI & DBW Throttle & Trans w/o Handheld 550-935TOverview: 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

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 550-928 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. These Terminator X kits include a USB/CAN tuning cable instead of the 3.5" Handheld LCD, these kits require the use of the free Terminator X Software for initial setup. The Terminator X Software includes multiple base calibrations to choose from for either naturally aspirated or boosted engines. 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!

Features:

  • Designed for GM LS 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and 4L60E/4L80E transmissions, Drive-by wire throttle body control, and EV1 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 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 – ¼ 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: 58x/4x LS Engine Main Harness - EV1 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 assor

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Crank Reluctor 58x
Emission Code 3
Ignition Type GM LS 58x
Injector Connector Jetronic / Minitimer (Bosch)
Product Type Terminator X Max LS MPFI
Terminator LS Options Fuel, Spark, Drive-by-Wire, Transmission
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: 87210950906

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H.Tran
Louisville, US
★★★★★ 5
Impressive Air Quality Upgrade
I recently upgraded my 2019 Honda Civic with the A-Premium Cabin Air Filter with Activated Carbon, and I couldn't be more thrilled with the results. This cabin air filter offers exceptional value for money, proving that you don't have to break the bank for improved air quality inside your car. Installing the A-Premium Cabin Air Filter was a breeze. It fit perfectly into my Honda Civic's existing filter slot, and the installation process was straightforward, even for someone with limited automotive knowledge. The filter's precise dimensions and design made it a seamless replacement, saving me time and effort. The included instructions were clear and concise, further simplifying the installation process. The activated carbon feature of this cabin air filter is truly remarkable. It works wonders in improving the air quality inside the car's cabin by effectively trapping and neutralizing odors, pollutants, and allergens. I immediately noticed a significant difference after installing the A-Premium filter. The cabin air felt fresher, and I could breathe easier knowing that the filter was efficiently removing harmful particles and unpleasant smells. Considering the affordability of this product and the tangible benefits it provides, the A-Premium Cabin Air Filter with Activated Carbon is an excellent investment. It delivers on its promise to enhance the air quality inside your vehicle, making your driving experience more comfortable and enjoyable. If you're seeking an affordable yet effective cabin air filter upgrade for your 2019 Honda Civic, I highly recommend the A-Premium Cabin Air Filter with Activated Carbon. Its exceptional value for money, ease of installation, and remarkable impact on air quality make it a standout choice that won't disappoint. Upgrade your driving environment today and experience the difference for yourself.
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Reviewed in the United States on June 25, 2023
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R J
Port Orchard, US
★★★★★ 4
2015 Civic
Size fits properly on a 2015 Honda Civic SI sedan. Price could be a little cheaper for a non-OEM part.
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Reviewed in the United States on March 21, 2026
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Jean Therasse
Grantham, US
★★★★★ 5
Excellent fit and great quality”
This filter fit perfectly and was very easy to install. The quality feels solid, and it made an immediate difference in air flow. It’s a reliable replacement at a much better price than the dealer. I’ll definitely be buying this brand again for future changes.
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Reviewed in the United States on August 17, 2025
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Robert Weiner
Phoenix, US
★★★★★ 5
Super deal
This was a great replacement and much cheaper than most.
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Reviewed in the United States on May 16, 2026
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Geff Chu
Natrona Heights, US
★★★★★ 5
Nice replacement filter
Fits perfectly
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Reviewed in the United States on April 18, 2026

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