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Holley EFI Terminator X - Gen III LS1/LS6
Holley EFI Terminator X - Gen III LS1/LS6
Holley EFI Terminator X - Gen III LS1/LS6
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Holley EFI Terminator X - Gen III LS1/LS6

Marsoni M251S
Sale price$749.98
Pay 4 payments of $187.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Holley EFI Terminator X - Gen III LS1/LS6OVERVIEW Take control of your LS engine with Terminator X! 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 features real time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and
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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]
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4.3 ★★★★★
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C
Verified Purchase
Chris C.
Houston, US
★★★★★ 1
Will be returned as soon as I have a replacement.
When engine is cold starter works fine with engine is hot. It will free wheel the starter motor, but not kick the starter gear into the ring gear on the motor. Watch video and listen it actually did it twice at this location but I didn’t catch the first one on the video.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
J
Verified Purchase
Jesus morales
New York, US
★★★★★ 5
Good fit
Works great and very affordable price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2025
B
Verified Purchase
Billy snead
Lowell, US
★★★★★ 4
Reasonably priced easy to install starter
Install starter went on pretty easy so far so had it on a few days now and it’s working.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
R
Verified Purchase
Ricky J. Umbarger
Massapequa, US
★★★★★ 5
fits well
went into my sisters 05 ford focus fit well and took about 45 min. to install. also a very good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2024
R
Verified Purchase
Robert Davis
Alexandria, US
★★★★★ 5
Great deal
Works perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 8, 2025

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