Fits: 2011-2016 GM Sierra/Silverado LML or LGH w/ 6.6L Duramax Engine
Note: These are files only! You need an EFILive AutoCal Device to flash these tunes onto any trucks!
Unlike most files on the market, CCS is true custom tuning for your Duramax. Just let us know what you're doing with the truck and we will get you tuning that is written specifically for your truck and your usage.
This is a single TCM Tune file for your LML or LGH Duramax with the A50 & T87 Allison Transmissions.
- Transmission Tune File
- Modified Shift Speeds
- Modified Shift Timing
- Improved TCC Lockup Strategy
- Increased Line Pressure at All Times
- Improved Torque Management
- Requires AutoCal Device
What we Need:
- Vin Number
- Transmission Type
- AutoCal Serial Number
- Auth Code
How To Tune with EFI Live
- Download Most Recent Version of EFILive V8
- Run a Firmware Update on your AutoCal Device
- Provide us with Your AutoCal Serial Number & Auth Code
- Provide us with your VIN Number
Note: Serial Number & AuthCode can be found by going to F7 Licences - F4 Vins