Holley EFI Lightweight Dominator ECU

Marsoni

M251S

$1455.47

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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Do not purchase this, it’s a waste of money. I’ve had it for only 6 months, and as you can see from the picture, the fabric is already coming apart. I don’t think this product is suitable for outdoor use. I live in an area with mild weather (mostly shaded, minimal rain, no snow, and limited sun exposure), and it still couldn’t handle that. Very disappointed. Customer support can’t help after 90 days, so the $100 I paid went to waste.

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Reviewed in the United States on October 28, 2025

Verified Purchase

S. Stewart

Dallas, US

★★★★★ 5

Dividers

Color: Black, Size: 8 Panel

Great quality

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Reviewed in the United States on April 7, 2026

Verified Purchase

CLI

Alexandria, US

★★★★★ 5

Outside Privacy!

I’m using this outside and it’s exactly what I needed! Since it’s in my flowerbed I sunk the little legs slightly to add stability…so far that’s working well.

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Reviewed in the United States on June 4, 2025

Verified Purchase

laurie conroy

Cuba, US

★★★★★ 5

Good quality

Color: Black, Size: 8 Panel

Good quality

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Reviewed in the United States on October 7, 2025

Verified Purchase

Jan in Pittsburgh

Phoenix, US

★★★★★ 2

Webbing material disintegrated within 8 months

This was advertised as an outdoor screen. It looked nice but literally touching the webbing after about 6-8 months, the material just fell apart. Had to throw it away.

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Reviewed in the United States on May 18, 2026