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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.
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4.2 ★★★★★
Based on 1362 reviews
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Verified Purchase
Ed
West Palm Beach, US
★★★★★ 5
works for me!
Seems much higher quality than the original, install is simple, and I like that there are 2 screws for hold the umbrella tight and straight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
J
Verified Purchase
JeepGuy
Bozeman, US
★★★★★ 5
Great replacement mount.
Great replacement that comes with 2 different inserts. Easy to replace our rusted out one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
M
Verified Purchase
MandosTools
Phoenix, US
★★★★★ 5
Worth my money!
Love this! I purchased a high priced large umbrella from Living Spaces with a weighted plate. Well with frequent strong winds on my patio the bar just was bending and couldn’t handle it. So purchased this. Feels sturdy and it’s longer so provides more support. For sure already noticing a difference. Glad I made this purchase. Would recommend ! It also came with varying sized cylinders for different pole widths. Therefore , you will end up not using one of them. Don’t regret buying this. It works!
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Reviewed in the United States on May 12, 2025
K
Verified Purchase
Kim
Massapequa, US
★★★★★ 5
Good value
Adapted to my umbrella pole easily
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Reviewed in the United States on April 6, 2026
M
Verified Purchase
Minnie
Waukegan, US
★★★★★ 5
Bright, Versatile, and Easy to Use!
Color: Warm White
This Dual-Power Patio Umbrella Light is exactly what I needed for evening gatherings! I love that it works with both rechargeable and regular batteries—super convenient. The three lighting modes are perfect for setting the mood, whether it’s a dinner party or just relaxing outside. It clips easily onto the umbrella pole and stays secure. Great for patios and even camping. Definitely worth it!
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Reviewed in the United States on June 23, 2025

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