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Description
EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control - 3.5 in. TouchscreenHolley EFI Terminator X Max Gen IV 4. 8 5. 3 6. 0 GM Truck Engines and LS2 LS3 24x Crank 1x Cam Multec 2 Injectors Drive By Wire Throttle Body and Transmission Control USB CAN Tuning Cable 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
Holley EFI Terminator X Max - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS324x Crank - 1x Cam - Multec 2 Injectors - Drive-By-Wire Throttle Body and Transmission Control - USB/CAN Tuning Cable
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 550-927 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!
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:
- 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 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 ???? ?? 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
- The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
- 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 - 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
Details:
- Crank Reluctor: 58x
- Ignition Type: GM LS 58x
- Injector Connector: USCAR (EV6)
- Terminator LS Options: Fuel, Spark, Drive-by-Wire, Transmission
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:
- 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
4.0 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Perfect for Me
Color: Gold, Size: 15"D x 33.9"W x 35.4"H
Beautiful serving cart! I love mine. I currently use it to display my collection of crystal stemware and glass dishes. It will also be useful in the future for serving food and beverages to my guests. I chose to not use the stemware and wine bottle racks. It’s completely optional. I like the more streamlined and uncluttered appearance for displaying whatever I wish. The color is probably best described as “matte antique gold” and matches many of my antique gold photo frames and brass figurines. My kit arrived with 4 identical rolling wheels rather than 2 regular and 2 locking wheels, which was perfect for me, because I didn’t want the locking wheels anyhow. It was like the kit had already been customized to my preferences. The only “glitch” was that there was a crimp in one of the pieces where it shouldn’t have been, which prevented 2 pieces from sliding together easily. After struggling with it for a bit without success, I got out my flathead screwdriver and a hammer and very gently flattened the crimp out so that the pieces would fit together. The result of my perseverance is amazing! I am super-happy with my purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 4
cart
Color: Gold, Size: 15"D x 33.9"W x 35.4"H
exactly what my wife had in mind
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Stylish and Functional Bar Cart, Perfect for any Space!
Color: Black, Size: 33.9"W
I recently added the VASAGLE Bar Cart in black to my home, and it has quickly become a standout piece in my kitchen and dining area! The sleek black frame combined with the mirrored shelves gives it a modern, elegant look that complements any decor.
Assembly was straightforward, with clear instructions and all necessary tools included. Once put together, the cart feels sturdy and well-constructed, perfect for daily use or special occasions.
The design is incredibly functional. The wine holders securely store my favorite bottles, while the glass holders keep my stemware organized and within easy reach. The mirrored shelves not only add a touch of luxury but are also spacious enough to hold everything from bar tools to serving platters.
Its mobility is a game-changer! The wheels roll smoothly, making it effortless to move from the kitchen to the dining room or even the patio for entertaining guests. The locking mechanism ensures stability when you need it.
Overall, this bar cart has exceeded my expectations in both style and functionality. Whether you're hosting a party or just want a convenient spot to organize your wine and cocktail essentials, this cart is a fantastic choice. Highly recommend!
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Reviewed in the United States on December 16, 2024
★★★★★ 5
Assembly instruction so poor it made it fun
Color: Black, Size: 33.9"W
The finished cart looks great but, man, I gotta give it up to whoever put those assembly instructions together. You, sir or ma’am, are a GD LEGEND. Following your nonsensical, contradictory and deceptive instructions became a magical journey that started in frustration and ended in maniacal, elated tears of joy. It was as if you crafted a special love letter just for me with hilarious inside jokes along the way that we shared across time and space. You, in your cubicle, dumping out misleading and false information and me, staring indignantly at the page wondering what type of unhinged person could possibly get so much wrong. Like when you illustrated and labeled two distinct and separate parts (and even gave instructions as to how to assemble them into one) when one, solid piece was clearly all that was present in the box. And how you labeled it with a clear letter C despite the glaring and bold G adorning the piece, in fact, mislabeled every single piece in the set. When you told me to expect three distinct screw sizes even though you knew I would only find two. How the wrench was slyly hidden away from the hardware box and instead wedged among the casters. I think my favorite part was noting how washers were included but left to my assumptions as to where to include them (this direction coyly absent from the manual entirely), only to realize at the end I would need to disassemble the very first step to find their intended home, relying purely on intuition to guide me. Thank you for the journey. I am a better human being as a result. I can only envy those lucky people in the future who will go though the same process of growth as I will never be able to have the experience again.
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Reviewed in the United States on December 4, 2025
★★★★★ 5
Best bar cart everrrr!!!
Color: Gold, Size: 26"W
ITS PERFECT AND SO CUTE!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
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