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Holley EFI Lightweight Dominator ECU

Marsoni M251S
Sale price$1455.47
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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.
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4.7 ★★★★★
Based on 2435 reviews
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Verified Purchase
Jim C
Birmingham, US
★★★★★ 5
It's K&N. Top quality filters
Fit perfectly. I've used K&N filters before and they worked great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2025
J
Verified Purchase
John E. Souder
Phoenix, US
★★★★★ 5
Fits perfectly
Fits perfectly and easy installation. Thanks !!!
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Reviewed in the United States on October 6, 2025
A
Verified Purchase
AmazonCustomer
Fort Morgan, US
★★★★★ 5
2024 Honda CR-V
Worked for 2024 Honda CR-V Sport (Hybrid). Sizing was appropriate and the new filter slid in without any issue. Consider the filter to be of good quality. Would recommend.
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Reviewed in the United States on December 20, 2025
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 4
more power
get more horse power & gas mileage
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Reviewed in the United States on April 19, 2026
S
Verified Purchase
Stymy
New York, US
★★★★★ 5
It Fits
it s fit and works like other K &N products
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Reviewed in the United States on July 8, 2025

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