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Old 08-13-2018, 10:07 PM   #11
TrackClub


 
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Drives: 2020 SS 1LE (previous: 2017 SS 1LE)
Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
Did the dealer hoist it to inspect for any possible crap that keeps releasing whilebyou drive at speed? Another thought would be something in the tires? Maybe your tire sensors got lose? From what you are describing it would be a classic sound of tires kicking up rocks. But if thats not the root cause then either there is crap somehere under your car, or perhaps inside the tires? Cant think of anything else.
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