GM E01 Controller Modification Service

GM E01 Controller Modification Service

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The E01 controller modification service will allow you to use the aftermarket tuning suite of your choice to modify your vehicle equipped with the E01 controller and 2.7L L3B Turbocharged 4 cylinder engine. 

Vehicles include :

2019 – 2021 Chevrolet Silverado 1500

2019 – 2021 GMC Sierra 1500

2020 – 2021 Cadillac CT4 Premium Luxury

2020 – 2021 Cadillac CT4-V


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

You will receive your original ECM back! 

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

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