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Yes, it is indeed a fact that the 2019+ model year SS, ZL1, Grandsport, Z06 and ZR1 all got updated tunes from GM that specifically cause more crackles and pops. I've seen the changes in the tunes as I've come across the newer model year cars. It can be applied to any 2014-2018 Corvette or 2016-2018 Camaro in the same manor or even more aggressive.
I don't know for sure if GM's sole reason was for more crackles but when looking at the tunes it sure looks like that was the effort.
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