SKU: 10293297731

Holley Terminator X Engine Management System 24T Chev LS1 / LS6 # HO550-903

Sale price$1167.75 Regular price$1297.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Holley Terminator X Engine Management System 24T Chev LS1 / LS6 # HO550-903Holley Terminator X Engine Management System 24T Chev LS1 LS6 # HO550 903 Engine Management Systems, Terminator X, Up to 8 Injectors, 8 Coils, Analog input, CANBUS, Sensors, Controller, Chevy, 5. 7L, 1x Cam, 24x Crank, Kit Transmission Controller Included: No High Impedence Injectors: Up to 8 Coils: Up to 8 Analog Inputs: 4 Wideband Controller: Yes Wideband Channels: 1 CANBUS Enabled: Yes CANBUS Networks: 1 Knock Control: Yes Knock Channels: 2 Drive

Holley Terminator X Engine Management System 24T Chev LS1 / LS6 # HO550-903
Engine Management Systems, Terminator X, Up to 8-Injectors, 8-Coils, Analog input, CANBUS, Sensors, Controller, Chevy, 5.7L, 1x Cam, 24x Crank, Kit
Transmission Controller Included:
No
High Impedence Injectors:
Up to 8
Coils:
Up to 8
Analog Inputs:
4
Wideband Controller:
Yes
Wideband Channels:
1
CANBUS Enabled:
Yes
CANBUS Networks:
1
Knock Control:
Yes
Knock Channels:
2
Drive-By-Wire Capable:
No
VVT Control:
No
Boost Control:
Yes
Nitrous Control:
Yes
Traction Control:
No
Launch Control:
No
Engine Protection:
Yes
Flex Fuel Compatible:
No
Multi-fuel Capable:
No
Data Logger:
No
Oxygen Sensor Included:
Yes
Display Included:
Yes
Handheld Controller Included:
Yes
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Fits LS1 and LS6 engines with a 24x crank trigger, 1x cam, 1bar MAP sensor, and EV1 injector harness. Includes a 3.5 inch touchscreen display. Cable operated throttle body. Cannot program through EFI Standalone Digital Dash Kits. This kit does not operate variable valve timing (VVT) or displacement on demand (DOD) systems.
Holley Terminator X Engine Management Systems
Holley Terminator X engine management systems let you take control of your domestic V8 engine. These kits give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFIall at a budget-friendly price! Every MPFI Terminator X features real-time fuel learn, high impedance injector drivers, an integrated one-bar MAP sensorand four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. All systems come fully loaded with base maps for common engine combinations to get you out of the garage and onto the road or track fast.Features include: Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users Real-time fuel map learntakes the guesswork out of tuning your base fuel table High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors. (Will not control low-impedance injectors) Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos MAP sensor vacuum hose adapters 4 inputs: 12 V, ground, 5 V, and frequency 4 outputs: Ground, PWM for accessories Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen Advanced tables: 4 x 1D tables, 1 x 1D per gear table, 4 x 2D tables, 1 x 2D per gear table On-board diagnostic LEDs allow you to identify any critical engine issues at a glance 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 Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most domestic V8 engines, as well as tuning and gauge display functions (not available with every kit)
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: 10293297731

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4.0 ★★★★★
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Verified Purchase
james allen
New York, US
★★★★★ 3
Great Idea but they will let you down eventually
I have used these for years during the winter. The price has nearly tripled but the longevity is the same. I normally purchase three with one being a spare. Within a few weeks they start going. I switch batteries etc but normally that does not help. Its a great idea and my dogs love them but they dont hold up to 10 minutes of play each nite. We do not throw them either, I roll them or kick them as my dogs are older
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
M
Verified Purchase
Mitchell LaForest
Waukegan, US
★★★★★ 5
Great product
Very good. Hours of fun with the dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
K
Verified Purchase
Krispy
Lexington, US
★★★★★ 2
Expensive ball- stops working in a week
Came without any protection inside for batteries. Stopped working after a week. Expensive ball to break in a week
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
L
Verified Purchase
Lauren Michelsen
Pawtucket, US
★★★★★ 5
Great ball for dogs
Murphy’s favorite ball!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
D
Verified Purchase
DDT
San Leandro, US
★★★★★ 5
Great fun for our dogs!
Style: Original
My dogs can’t get enough of this very noisy ball. We have one outside and one in their playroom. It is very noisy. It is very hard. So, I’d say a room with fine furniture is not the place for it. Ours bang it around pretty good. Our boxer did split one, biting it. But, she’s a serious chewer! Our other dog carries it around sometimes but hasn’t been able to damage it yet. So, I’d say for most chewers it’s going to last a long time. It’s a great toy but in most households I’d say basement or outside. Again, it’s hard and did ding a few baseboards.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026

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