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Holley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld
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Key item features
- Engine Compatibility: 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, utilizing EV6 Injectors.
- Tuning Capabilities: Features real-time fuel map learning, simplifying base fuel table tuning, and includes a USB/CAN tuning cable for laptop configuration and real-time engine tuning.
- Injector & Sensor Support: High impedance injector drivers safely power most stock LS and Holley EFI injectors, and includes a Bosch LSU 4.9 wideband sensor for accurate AFR readings.
- Integrated Sensors: Equipped with an on-board 1bar MAP sensor suitable for N/A or Nitrous engine combinations, with adapter options for higher bar requirements.
- Programmable I/O: Offers four programmable inputs (12v, Ground, 5v, Frequency) and four programmable outputs (Ground, PWM) for accessories like fans, boost control, and nitrous.
- Advanced Controls: Provides comprehensive boost control (vs. Time, Gear, RPM, Speed, Safeties) and single-channel nitrous control (Wet/Dry, Progressive/Non-Progressive, Safeties, Closed Loop AFR).
- Diagnostic & Software: Features on-board diagnostic LEDs for critical engine issues and comes with free EFI Tuning Software for complete control and access to multiple base calibrations.
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Specs
- Vehicle makeGM
- BrandHOLLEY EFI
- Automotive parts divisionPerformance
- Vehicle fitment typeSpecific
- FeaturesEasy To Use
- SeriesTerminator X Max
Current price is USD$1,849.95
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Columbus, 43215
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| Product | Viewing this itemHolley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld ![]() $1,849.95 current price $1,849.95 | Holley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control ![]() $1,899.95 current price $1,899.95 | Holley EFI 550-950 Terminator X Max Universal MPFI Kit w/ DBW Control ![]() $1,899.95 current price $1,899.95 | Holley EFI Terminator X Max Mpfi W/Dbw, Ls1 ![]() $1,849.95 current price $1,849.95 | Holley EFI 550-930 Fuel Injection System ![]() $1,899.95 current price $1,899.95 | Holley EFI 550-929 Fuel Injection System ![]() $1,899.95 current price $1,899.95 | Holley EFI 550-916T Terminator X Max 24x/1x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld ![]() $1,849.95 current price $1,849.95 | Holley EFI 550-1224 Terminator X HEMI Gen III 2007-2013 Kit ![]() $1,949.95 current price $1,949.95 | Holley EFI 550-920T Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld ![]() $1,849.95 current price $1,849.95 | Holley EFI 550-1311 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT ![]() $2,599.99 current price $2,599.99 |
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| Vehicle make | GMHolley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | GMHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control | -Holley EFI 550-950 Terminator X Max Universal MPFI Kit w/ DBW Control | GMHolley EFI Terminator X Max Mpfi W/Dbw, Ls1 | GMHolley EFI 550-930 Fuel Injection System | GMHolley EFI 550-929 Fuel Injection System | GMHolley EFI 550-916T Terminator X Max 24x/1x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | ChryslerHolley EFI 550-1224 Terminator X HEMI Gen III 2007-2013 Kit | GMHolley EFI 550-920T Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | FordHolley EFI 550-1311 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT |
|---|---|---|---|---|---|---|---|---|---|---|
| Automotive parts division | PerformanceHolley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | PerformanceHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control | PerformanceHolley EFI 550-950 Terminator X Max Universal MPFI Kit w/ DBW Control | PerformanceHolley EFI Terminator X Max Mpfi W/Dbw, Ls1 | PerformanceHolley EFI 550-930 Fuel Injection System | PerformanceHolley EFI 550-929 Fuel Injection System | PerformanceHolley EFI 550-916T Terminator X Max 24x/1x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | PerformanceHolley EFI 550-1224 Terminator X HEMI Gen III 2007-2013 Kit | PerformanceHolley EFI 550-920T Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | PerformanceHolley EFI 550-1311 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT |
| Vehicle fitment type | SpecificHolley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | SpecificHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control | UniversalHolley EFI 550-950 Terminator X Max Universal MPFI Kit w/ DBW Control | SpecificHolley EFI Terminator X Max Mpfi W/Dbw, Ls1 | SpecificHolley EFI 550-930 Fuel Injection System | SpecificHolley EFI 550-929 Fuel Injection System | SpecificHolley EFI 550-916T Terminator X Max 24x/1x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | SpecificHolley EFI 550-1224 Terminator X HEMI Gen III 2007-2013 Kit | SpecificHolley EFI 550-920T Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | UniversalHolley EFI 550-1311 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT |
| Features | Easy To UseHolley EFI 550-918T Terminator X Max 58x/4x EV6 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | Easy To UseHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control | Easy To UseHolley EFI 550-950 Terminator X Max Universal MPFI Kit w/ DBW Control | Easy To UseHolley EFI Terminator X Max Mpfi W/Dbw, Ls1 | Easy To UseHolley EFI 550-930 Fuel Injection System | Easy To UseHolley EFI 550-929 Fuel Injection System | Easy To UseHolley EFI 550-916T Terminator X Max 24x/1x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | Easy To UseHolley EFI 550-1224 Terminator X HEMI Gen III 2007-2013 Kit | -Holley EFI 550-920T Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission Control - Without 3.5" Handheld | Easy To UseHolley EFI 550-1311 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT |
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About this item
Product details
GM LS 58x Crank, 4x Cam - 4.8/5.3/6.0 Truck Engines and LS2/LS3 - 4L60E/4L80E Transmission Control, USB/CAN Tuning Cable;
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 NOS control, and much more. Part number 550-918 also has 4L60E or 4L80E Transmission 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 in. 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!;
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 NOS control, and much more. Part number 550-918 also has 4L60E or 4L80E Transmission 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 in. 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!;
- 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, and 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 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 â€" Â1/4 and 3/16ths)
- 4 Inputs â€" 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
- 4 Outputs â€" Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
- Boost Control â€" Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
- Nitrous Control â€" Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
- Advanced Tables â€" 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 â€" Engine Run â€" Wideband Status â€" TPS Calibration â€" Crank Signal â€"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
- Includes: 58x/4x LS Engine Main Harness - EV6 Injector 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 vacuum adapters.
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Specifications
Compatible cars
GM LS 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and 4L60E/4L80E transmissions, and EV6 Injectors
Vehicle make
GM
Vehicle model
LS 4.8, 5.3, 6.0 LS Truck Engines and LS2, LS3
Fuel injection accessory & part type
Terminator X Max Kit with Transmission Control
Warranty
Warranty information
see Manufacturer website
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
California Proposition 65
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