Buzzing Sensation Through Chassis

[m3bs]

I’m getting an odd buzzing sensation that I feel through the pedals and floorboard, at low rpm (2 K-4K) and moderate load. I’ve checked all of the exhaust mounts, and checked for contact with any of the undertray components. I’m beginning to think I have a motor mount going bad. The car has a fair amount of track time, but I never launch it hard from a stop. Thoughts?

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