[Wolfman1]

Thanks everyone. Looks like the stock tires are the culprit. I didn't expect to see this bad of wear at 20K miles but then, I did replace the stockers on my 2017 SS at around 20K but they didn't look near as abused as the ZL1 tires. Previous owner must have put in some track days on the ZL1. I'm super impressed by the ZL1; what a difference 200 HP makes along with handling stuff, too. New tires and theft protection coming tomorrow. All season tires with a warranty are in my future for street use.

UPDATE: Got the CONTINENTAL EXTREME CONTACT DWS06 PLUS. No more drone!