GM T87A Controller Modification Service

GM T87A Controller Modification Service

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$199.99
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$199.99
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The T87A controller modification service will allow you to use the aftermarket tuning suite of your choice (Does not work with HPTuners) to modify your T87A equipped 2017+ L5P Duramax with Allison 6 Speed Transmission.

This is a service performed on your original TCM with a 1-2 business day turnaround. 

You will receive your original TCM back! 

You will not have to perform an immobilizer relearn or any other relearn operations before you reinstall the TCM in your vehicle. 

The TCM operating system and calibrations are not modified in any way from OEM stock, and retain the original OEM CVN's. 

 

In an effort to push the market toward developing CAA compliant products and tuning, CDS has implemented the following strategy:

This TCM modification service will not allow modified diagnostic segments to be flashed, which prevents all OBD readiness tests, OBD Monitoring, and Emissions Controls from being modified. Attempts to flash files with modified diagnostic segments will fail the reflash and remain in boot mode until a valid file is flashed in.