I don't know what gearbox is in the X6 but if it is the same one as in the 4.8 X5 then it is rated up to 650 Nm - anything over that and I would be looking for a very big BANG!

Details here:
http://www.x5world.com/pdf/e70/02c_E...nsmissions.pdf

__________________
StumpyPete



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