SKU: 70692830441

LB7 Duramax Stock File 2001–2004 | Unlocked EFI Live OEM Tune

$89.10 $99.00
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

LB7 Duramax Stock File 2001–2004 | Unlocked EFI Live OEM Tune100% Stock OEM calibration file unlocked and fully compatible with EFI Live hardware & software. Ideal for restoring your LB7 Duramax back to OEM factory calibration. Works with all EFI Live FlashScan & AutoCal devices. Unlocked for full editing, logging, and custom tuning flexibility. Direct fit for 20012004 GMC Sierra & Chevy Silverado 2500HD 3500HD equipped with the 6. 6L LB7 Duramax. Digital Delivery Your unlocked stock file will be sent directly

💻 100% Stock OEM calibration file — unlocked and fully compatible with EFI Live hardware & software.

✅ Ideal for restoring your LB7 Duramax back to OEM factory calibration.
✅ Works with all EFI Live FlashScan & AutoCal devices.
✅ Unlocked for full editing, logging, and custom tuning flexibility.
✅ Direct fit for 2001–2004 GMC Sierra & Chevy Silverado 2500HD / 3500HD equipped with the 6.6L LB7 Duramax.

⚡ Digital Delivery – Your unlocked stock file will be sent directly to your email after purchase within 1 business day

🛡️ 100% Authentic | Backed by Piston Twistin | Unlimited Support

 Tags / Meta:

  • LB7 Duramax stock file EFI Live

  • 2001–2004 LB7 stock tune

  • Chevy Silverado LB7 stock tune unlocked

  • GMC Sierra LB7 stock file EFI Live

  • Unlocked OEM LB7 EFI Live file

 

 

Shipping Notes
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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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SKU: 70692830441

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4.5 ★★★★★
Based on 30 reviews
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D
Verified Purchase
Dani Cuervo
Fort Morgan, US
★★★★★ 4
Stylish and comfortable
Size: 3X, Color: Porpoise
I love the slit in the back, it elevates the sweater well. It’s comfortable and made out of a thick, quality material. The only downside is that the sleeves are quite long and don’t roll up well. Otherwise I love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
E
Verified Purchase
Ellimac
San Leandro, US
★★★★★ 3
Cute but pills
Size: 3X, Color: Chocolate
Runs a little big. I’m good with that. The style and brown color are great! I love the wide sleeves. The material is very soft and cozy…but I wore it once for 3 hours and the sides and stomach area pilled. I am disappointed. I am going to hand wash it and see what it looks like. I may need to return it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2022
M
Verified Purchase
Magan Martin
Belleville, US
★★★★★ 5
Perfect little set! Get both
Size: Small, Color: Porpoise
Such a soft sweater! You have to get the matching set! The quality is amazing and the material is nice and thick for those chilly days! The set feels like a more expensive brand so you get a good deal! I washed it and it did not shrink and the color did not fade. I hung to dry and the fabric still looks perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
L
Verified Purchase
Laura.h
Chelsea, US
★★★★★ 5
Impressive style and quality!
Size: Large, Color: Chocolate
I was impressed by this ribbed crewneck sweater's quality and style. It's soft, comfortable and flowy without being shapeless. I love the back slit which ads a little chic. I chose the chocolate color which is a rich, dark cocoa. The sweater is true to size. The sleeves are slightly bell shaped which ads elegance. I highly recommend pairing this sweater with the matching cropped pants. Together it creates a lounging set that's casual yet elegant and ideal for travel. Highly recommend both.
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Reviewed in the United States on September 11, 2023
C
Verified Purchase
Cass
Massapequa, US
★★★★★ 5
Cute and Cozy
Size: Medium, Color: Chocolate
Normally I am hesitant to buy clothes off Amazon but I kept getting ads for this. I took the chance and bought this + the pants. I live in Michigan where winters get bitter cold. These are actually very cute and cozy. I wear one layer of thermals over it and my puffer coat but even without it, it's still warm. The size is fine I would say you are ok sticking with your regular size or sizing down. It is thick and stretchy too. I got lots of compliments on the outfit.
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Reviewed in the United States on January 7, 2025

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