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      05-28-2020, 09:55 AM   #183
placebo0311
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Drives: 2023 BMW M3 Competition
Join Date: Oct 2019
Location: North Carolina

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Bummer man. That's the same exact rattle sound I hear on my exhaust only yours sounds worse. I'm taking mine back as well to have my valves checked again. I discovered that even after cold start AND in Sport mode, I still get a little bit of a rattle, although not nearly as bad as yours.
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