Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928T
SKU: 88474172639

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928T

Sale price$967.47 Regular price$1074.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928TOverview: 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 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 – 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 - 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

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 USCAR (EV6)
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: 88474172639

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 967 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Julie
Bozeman, US
★★★★★ 5
Cute toy for my dog!
Color: Yellow - Fried Chicken Leg, Color: Yellow - Fried Chicken Leg
I have an old gentle dog who can’t chew on hard toys so he enjoys soft toys. This chicken drumstick is soft, squeaky, and cute!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
N
Verified Purchase
Nick Wu
Boise, US
★★★★★ 5
good
Color: Yellow - Fried Chicken Leg, Color: Yellow - Fried Chicken Leg
My dog is obsessed with this toy. He carries it around everywhere and plays with it every day. Good quality, cute design, and great value. Would buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
C
Verified Purchase
Chentao
Los Angeles, US
★★★★★ 5
doggy toy chicken leg
Color: Yellow - Fried Chicken Leg
I bought this chicken leg toy for my dog and it quickly became one of his favorites. The yellow top part has two different sections — the very top makes a crinkly sound like paper when he bites it, and the middle squeaks when he chews or presses on it, which really keeps him interested. The white bottom part is super soft and easy for me to hold, so it’s great for playing tug or just interacting with him. The size is perfect for small dogs, but it might feel a bit small for larger breeds — that said, the material quality is really nice. Overall, it feels well made, fun, and keeps my dog entertained without getting bored. Definitely a good buy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
X
Verified Purchase
xmiki
Battle Creek, US
★★★★★ 4
Fun, engaging, and cute toy for dogs!
Color: Yellow - Fish Skewer, Color: Yellow - Fish Skewer
I got the fried fish toy for my dog. So far, he really enjoys the squeaking noise and comes running every time he hears it. The toy material is pretty thick and is holding up well during playtime. The size of this toy is perfect for my small dog but it might be a bit small for larger dogs. Overall it's a fun and super cute toy for my pets that's become a favorite!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
G
Verified Purchase
Gin Fu
Cuba, US
★★★★★ 5
Fun enrichment
Color: Yellow - Fish Skewer, Color: Yellow - Fish Skewer
Bought this to keep my dog busy while I’m out, and surprisingly it works. It’s soft, lightweight, and he was interested right away. Hiding treats inside turns it into a sniffing challenge that keeps him occupied longer than expected. The squeaker does its job, and the material feels gentle, but this is not for heavy chewers. If your dog destroys toys for sport, proceed with caution. Overall, it’s a fun enrichment toy that helps with boredom. Great for light to moderate play and dogs who don’t choose violence every day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026

recommand products