370Z JT: Drive the car hard for a few mins. Tell me if the sound goes away. Redline 1st and 2nd. Usually, when I begin to hear the rattle, I'll just goose the throttle in 1st and 2nd a few times, and it stops. If I have a good enough stretch, I'll give 3rd a press too just to heat things up. After that, it doesn't come back for quite a while (over a week usually).
According to Tony this is part of the break-in process. I'm approaching 1000 miles on my 2nd set, so hopefully mine stops for good.
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