FITMEN
- 2011-2016 6.6L GMC Chevy Duramax Custom Tuning File for EZ LYNK
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NOT compatible with commercial Cab & Chassis flatbeds, nor will it work with commercial Duramax cargo vans/cutaways.
DESCRIPTION
Product Overview
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The 2011–2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD powered by the 6.6L Duramax LML V8 engine are built for heavy towing, but restrictive factory ECM programming, sluggish throttle response, and conservative Allison transmission shift points restrict their true capability.
- The Duramax LML EZ Lynk Custom Tuning Package uses advanced cloud technology to deliver tailored performance files directly to your EZ Lynk AutoAgent device. Managed entirely through your smartphone, this software package provides seamless SOTF control over your engine mapping.
- Whether you need a refined heavy-towing profile to keep EGTs low or a high-output street tune, this package optimizes boost pressure curves, fuel injection timing, and Allison 1000 transmission line pressure to unlock maximum responsiveness and clean power.
Key Features
- Massive Fuel Mileage Gains: Most Powerstroke owners report an immediate increase of 3 to 5 MPG, with some seeing up to 7 MPG improvements depending on driving habits.
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FREE Premium Lifetime Technical Support: Direct, one-on-one access to our in-house calibration engineers whenever you need troubleshooting or setup help.
- FREE Lifetime Tuning Adjustments: Change tires, upgrade parts, or request tune updates down the road anytime for free. No expiration, no hidden fees.
- Cloud-Based Delivery: No dealing with SD cards, no messy PC downloads, and no running wires to a Windows laptop. Everything is done right from your smartphone.
FAQ
Q: Does this product include the physical EZ Lynk AutoAgent OBDII device?
A: No. This is a Custom Tuning Software Package / Cloud Access License. You must already own or separately purchase an EZ Lynk AutoAgent (1.0, 2.0, or 3.0) hardware device to flash your vehicle.
Q: Can I change power levels on the fly while driving my LML Duramax?
A: Yes. When paired with a physical 5-position SOTF switch or through the EZ Lynk mobile app interface, you can switch between power maps instantly while driving.
Q: Do 2011–2016 LML Duramax trucks require an ECM unlock prior to flashing?
A: Unlike 2017+ L5P models, the 2011–2016 LML ECM can be flashed directly via the OBDII port using the EZ Lynk AutoAgent without needing a bench unlock procedure.
Q: What power levels (HP gains) are typically included in this package?
A: Multi-position SOTF files typically feature: Position 1 (Optimized Stock / Valet), Position 2 (Heavy Tow / +30-50 HP), Position 3 (Light Tow / +75 HP), Position 4 (Street / +100 HP), and Position 5 (Performance / +130+ HP).
