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Holley EFI Lightweight Dominator ECU

Marsoni M251S
Sale price$1455.47
Pay 4 payments of $363.87 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Holley EFI Lightweight Dominator ECUPN 554 114LW is a Holley EFI Dominator ECU which utilizes a lighter potting material than the standard Dominator unit (reduces total weight by 1. 8 lbs). This lightweight version is specifically intended for drag racing. It is not recommended for use in high heat conditions (under hood mounting installations), and applications with high continuous current draw. Features Designed for GM LS Gen III and IV engines equipped with GM LS3 L92 cylinder heads
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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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4.7 ★★★★★
Based on 121 reviews
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Verified Purchase
virakone ratsavong
San Leandro, US
★★★★★ 1
Not fit
I was overseas. They said it will fit this car 2024 RX350h, not at all, completely difference style. Tried to return it, no luck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2025
A
Verified Purchase
Ashley Jordan
Alexandria, US
★★★★★ 5
Works
Works as it should.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
T
Verified Purchase
Theodore
Whiting, US
★★★★★ 5
Good and easy filter replacement
Filter was great and easy replacement
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Reviewed in the United States on October 27, 2025
J
Verified Purchase
JR Landreau
Alexandria, US
★★★★★ 5
Engine abd
Good quality, sturdy, and easy to install.
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Reviewed in the United States on September 7, 2025
K
Verified Purchase
K. Anderson
San Leandro, US
★★★★★ 4
Working great
Both filters fit just right and are doing a great job.
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Reviewed in the United States on October 9, 2025

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