I run a 4.88 torsen diff in my second gen, and am considering building a spare diff of mine into a torsen 5.12 -Hoping you guys could answer some questions about the torsen. (bear with me im not very familiar with diffs)

-Where do the torsen components come from? 94-98 miata?

-does this all drop into the stock 2nd gen housing?

-wouldent it be illegal to run an entire 94 miata torsen diff?

-how much does whatever im looking for cost!? (i already have a spare 2nd gen diff and im aware of the RandP cost)

Thanks a bunch!