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LS Gen 3 ECM Bench Reader Diagnostic Tuning Tool Harness LS1 LM7 P01 P59 0411

Marsoni M251S
Sale price$197.99
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LS Gen 3 ECM Bench Reader Diagnostic Tuning Tool Harness LS1 LM7 P01 P59 0411LS Gen 3 Engine Computer ECM Bench Reader Harness Sealed, crimped and assembled in Wichita Kansas, with USA made, OEM grade, TXL wire Plug and play for GM (Gen 3) LS series engine computers When using Blue Green ECM only the blue connector will be used Allows Engine Computer to be flashed and tuned off vehicle Includes: 1 bench reader harness Assembled with OEM tooling, OEM Delphi (connector, lock, seals, and terminals),(uses OEM harness wire colors)
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  • We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 828 reviews
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Eliot
Battle Creek, US
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
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Verified Purchase
Dr. DeeJaye
Battle Creek, US
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025
C
Chloe
Fort Morgan, US
★★★★★ 3
Its alright
Color: Black, Size: 5X-Large
True to size per the size chart. The fabric is soft but it it feels cheap to me. It attracts lint but you can brush it off easily so its not the cheapest material I've dealt with. Also, it is opaque (not see through). There is no front/ back indicator either which is indicative of a cheap shirt in my opinion. Would be friendly for tag sensitive people (to stay positive).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Fit and colors are perfect
Color: Black, White, Apricot, Size: Large
They fit very well, I got them for my husband and he was very excited for the style & fit i am actually going to buy him another pack
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Reviewed in the United States on October 7, 2025
C
Verified Purchase
ChilledOut
Carnegie, US
★★★★★ 1
Fuzzballs get wearing once
Color: Black, Size: X-Large
Very smart to wear, but the quality is terrible so after one wash the collar start fraying and fuzzballs start forming. Very disappointing.
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Reviewed in the United States on June 2, 2026

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