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This 'bolt snapping' is prevalent enough that it seems like a bigger issue than a bunch of people doing launches from 3k rpm. This does not seem to occur as often with any other vehicle with this level of HP or higher (especially FI engines that are modded) and one can't really assert that only M3 drivers do 3k rpm launches. There is a reason why the M3 GTS and the new M5 have differentials that are connected to the subframe w/ solid bushings...it's pretty apparent that it's a design flaw. A car of this caliber should not have this issue. You might want to just see what the guys from BMW have to say, and I would log in a complaint to the NHTSA, since that's the only way that will get BMW's attention and hopefully with enough people complaining, they'll issue a fix.
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