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Old 12-03-2022, 10:39 AM   #13
mRahmani
 
Drives: ‘23 SS 1LE
Join Date: Nov 2021
Location: SE MI
Posts: 111
You will not notice knock because the knock detection and SPI prevention software is making sure the engine doesn’t grenade. Yes, you can run 87 and the engine probably won’t die (though GM will deny your warranty claim if it does.)

But it’s also going to be slower.
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2023 2SS 1LE “Red Hot”
Built 7/14/22
Delivered 8/27/22!
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