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  1. Exhaust Question - can't stand rattle!

    DIY: Do It Yourself
    Noticed in my 2001 330xi that the butterfly valve was jammed shut, so I golf tee modded it. Anyway, due to a broken spring, it will just rattle now when idling and not stay open. I bought some JB weld to epoxy it open, but due to low clearance between the pipe and bumper, I don't think I'll be...
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