HPT GM E41 ECM Upgrade Kit

Marsoni

M251S

$107.58

Get it in 3 business days with 1 day shipping. Friday, May 29

HPT GM E41 ECM Upgrade KitHP Tuners GM E41 ECM Upgrade Kit for supported GM E41 ECM (L5P)

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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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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

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Reviewed in the United States on February 26, 2024

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Carl L. Bradley

Los Angeles, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025

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Collin

Pawtucket, US

★★★★★ 5

Great look and storage space

I've had these shelves for two years now, and still love them. I love the industrial style. They add lots of great storage space for a small apartment. I have two sets - one for the laundry room and the other as a linen closet. Assembly is okay. Make sure you follow the instructions.

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Reviewed in the United States on April 4, 2026

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AmazonReviewer

Charlottesville, US

★★★★★ 5

Great product

Great product. All items included in package. Easy to assemble.

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Reviewed in the United States on November 23, 2025

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Creative Galina