The only proof I have that my rattle is actually the wastegates was my local shop guy basically held the wastegate open with a screwdriver and had me rev it. The rattle disappeared. This was after having DP gasket replaced. It is one WG louder than the other. I have yet to bring it to dealership 2/2 time and waiting for oil change time (and of course other things for them to look at....Seat rattle, door lock rattle, B&O rattle, B&O center speaker creaks when opening and closing now, front wheel bearings, etc). So I'd imagine I might be without my car for awhile. Of course, I'll post results when it's all said and done.
Mark
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Rivian R1T
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