2011-2016 Duramax CCS AutoCal TCM Tuning Add-On (EFILive)-TCM Tune Files-Coopers Custom Solutions-11-16-LML-CCS-EFI-TCM-Dirty Diesel Customs

2011-2016 Duramax CCS AutoCal TCM Tuning Add-On (EFILive)

Coopers Custom Solutions

Part Number: 11-16-LML-CCS-EFI-TCM

Mfr Part Number:

Sale price$253.00 CAD

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 Year Make Model Engine
Sierra/Silverado LML or LGH w/ 6.6L Duramax 

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. 

When Purchasing TCM (Transmission) Tuning, please email a photo of your TCM Sticker/Name Plate to tunes@dirtydieselcustoms.com

  • 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
If you have existing tuning on your truck, you will need to contact the tuner for the AutoCal Unlink Codes. They will usually provide you with instructions on how to do this. 
  • 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



Ask a Question
  • What does the Transmission tuning do?

    TCM Tuning increases the line pressure, this puts more pressure on your clutch packs and prevents them from slipping which can cause excessive early wear on clutch disks. It will also change the shifting points to match the new tuning which helps improve the overall driveability.

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