After a long wait we finally have E51 supercharged axles for the AW11.
These are stronger than OEM, rated at 425 WHP but should take a good bit more on a car that isn't hammered on regularly.
We can get a stronger version with a stronger outer joint making them good for 600+ but it would also require a different outer hub.
Lifetime warranty on hard parts. Does not cover boots or shiping.