Quote:
Originally Posted by Soorena
Correct. However they have higher lock percentage (%65 IIRC) compared to this option. OS Giken's clutch type is $3,500-ish and locks up to %100. But one could argue that a clutch type LSD is overkill for a street car.
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A clutch type diff is what BMW used to use when this was a factory option. It is also what M cars used until they went to an electronic variable lock system.
IIRC current M cars dont even use clutches anymore. There is a variable servo operated mechanism that can go from full open to full closed or anywhere inbetween in .001 sec.