One of the major players in the tuning aftermarket is HP Tuners who manufacture vehicle control modules as well as a host of programming tools. Builders would eventually find some limited work-arounds such as adding secondary ECMs or tricking the sensors to not throw check engine lights.
Of course, we know now that Global B’s cyber-security protocols would also lock out the aftermarket performance shops from being able to add a custom tune to the Corvette. One of the main strengths of Global B was that the engine control modules were encrypted to protect the car from hackers and unauthorized updates. The system is designed to move massive amounts of data from various sensors and control modules throughout the vehicle, and also allows for very convenient over-the-air software updates. Prior to the launch of the C8 Corvette in early 2020, we learned that Chevrolet would be including GM’s new Global B electrical architecture on the mid-engine Corvette.
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