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GDPCOMM1001 DieselR Corp GDP Commander / My Diag - Ford 6.7L Powerstroke 2020-2022 / GMC/Chevy 6.6L Duramax 2017-2023

Mftr. Part#: GDPCOMM1001
Manufacturers: DieselR Corp , GDP Tuning
The new GDP Commander/My Diag offers a convenient option to perform the ECM upgrade on your 2017-2023 Chevy Silverado/GMC Sierra 6.6L Duramax or 2020-2022 Ford 6.7L Powerstroke in your own garage/shop. The best part? There’s no need to remove the ECM from the truck. This means there’s no risk of breaking tabs during the removal or reinstallation process. This kit also doesn’t require any reprogramming or relearns.

PRODUCT DETAILS (click to expand)

Mftr. Part#GDPCOMM1001

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Truck Type/ModelDuramax
Truck Type/ModelFord
BrandGDP Tuning
Emissions Delete CapableYes



To purchase this product, you must accept the terms of the OFFROAD RACE-ONLY DISCLAIMER. Click HERE to view.



For the Powerstroke this tool will directly plug in to your ECM and allow us to remotely tune your truck without you having to ship your ECM to us. It also comes with a OBD connector which allows us to tune your TCM as well.

For the L5P Duramax this tool will unlock and flash your 17-23 E41 ECM. TCM unlock and flashing capabilities coming soon!

Note: GDP is currently only doing single tunes via the Commander / MyDiag. But you can use the Commander / MyDiag to unlock the E41 then use HP Tuners MPVI to flash.

Note: T87A TCMs unlocking and flashing via the Commander / MyDiag coming soon


  • No IMMO relearn
  • No crank relearn
  • No need to perform "replace ECM function"

Important Note

**8 Credits Included**

2020-2022 Powerstroke (8 Credits)

2017-2023 L5P E41 ECM Unlock (4 Credits)

2017-2023 L5P E41 ECM FLASH (8 Credits)

Installation Instructions - Read Carefully