AMDP EFILive Custom Tune File | 2011-2016 GM 6.6L LML Duramax
AMDP EFILive Custom Tune File | 2011-2016 GM 6.6L LML Duramax
In stock
Drag your file here or click to upload.
Tech Specs & Fitment
- Fitment
- 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado, Sierra 2500HD, Sierra 3500HD
- Engine Code
- 6.6L LML Duramax
- Tuning Platform
- EFILive
Unlock Unrestricted Power for Your LML Duramax
Stop leaving horsepower and torque on the table. The AMDP EFILive Custom Tune File is specifically engineered to optimize the combustion process and powertrain efficiency of your 2011-2016 GM 6.6L LML Duramax. By modifying countless engine parameters, AMDP delivers vastly improved throttle response, increased fuel mileage, and serious heavy-towing capability to keep your rig running reliably.
Whether you need a reliable, dedicated 50HP tow file for your hot-shot rig or want the ultimate flexibility of a 5-position Switch-On-The-Fly (SOTF) setup to toggle up to +150HP on demand, AMDP provides clean, usable power. These off-road calibrations deliver maximum performance without excessive soot (no lope or smoke tunes are supported).
⚠️ IMPORTANT: This is a digital calibration package. Please checkout using a valid email address. Your files are pushed via the Cloud, and we will email you the exact instructions to link your vehicle within 24-48 business hours. Ensure your exact 17-digit VIN is entered correctly above.
Maximize Your Build
Pro Tip: We highly recommend choosing the SOTF (Switch-On-The-Fly) option so you can dial back the power when hauling heavy and turn it up when running empty. Furthermore, adding Allison TCM Tuning (sold separately) is strongly advised. TCM tuning increases transmission line pressure, preventing your clutch packs from slipping and drastically reducing premature wear under your new power levels.
🔥 Power Levels & Tune Options
Choose a single dedicated power level, or select the SOTF option to access all five levels via a dial switch (switch sold separately):
- Level 1: Optimized Stock (+0HP)
- Level 2: Heavy Tow (+50HP)
- Level 3: Light Tow / Street (+75HP)
- Level 4: Performance (+100HP) - EGT Monitoring Highly Recommended
- Level 5: Max Effort (+150HP) - EGT Monitoring Highly Recommended
⚙️ Technical Specs & Requirements
- Hardware Required: An existing, unlocked EFILive AutoCal device is mandatory to flash these files onto your truck. No physical hardware will be shipped.
- TCM Tuning: Allison transmission tuning is optional but highly recommended for 2011-2016 LMLs. If ordered, you must supply a stock read file of your TCM so the custom calibration can be built.
- Custom Builds: Files are written specifically to your truck based on the VIN and modifications provided at checkout.
🛻 Vehicle Fitment
- Direct Fit For: 2011-2016 Chevrolet Silverado & GMC Sierra 2500HD/3500HD
- Engine Code: 6.6L LML Duramax
- Fitment Notes: 17-digit VIN required. Your EFILive VIN license will be utilized to lock these files exclusively to your truck.
We ship to the United States
We ship to the United States
We ship tuning hardware, custom files, intakes, injectors, and most performance parts to the USA daily. We also offer Free Shipping occasionally
We ship fast
We ship fast
We move fast. Most in-stock items dispatch within 1–3 business days. US customers typically receive their orders in 3–7 business days via the fastest ground carriers available. You will receive a tracking link the moment your label is printed.
No hidden customs or duty fees in the US
No hidden customs or duty fees in the US
Whenever possible, we fulfill your order directly from our US-based manufacturing partners so it never crosses a border. Even if a part ships from our Canadian HQ, most auto parts are exempt from heavy tariffs under the USMCA trade agreement. However, if any local state taxes or minor brokerage fees do apply, they are the buyer's responsibility.

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Make your truck last longer
Make your truck last longer
Make your truck last longer
Make your truck last longer