Exhaust Rattling Against Drivetrain

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Anybody have this happen before? Berk race exhaust rattling against driver side rear control arm, and possibly in one or two other places I have yet to discover. Almost seems like the exhaust is shimmying on the hangers and eventually making its way against the drivetrain. Tried cushioning it but the exhaust eventually flattened out my cushion., Was wondering if anyone had any ideas? Plan today is to drop the exhaust and rebolt it as far away as possible from the drivetrain, but I then have to deal with these hangers. Do stores carry modified more sturdy hangers? Any ideas are greatly appreciated !