82/87 j trim VS. 82/87 sxe

I’m trying to figure out the difference between the 82/87 “J” trim turbine and the new s400sxe’s 82/87 turbine. I know they use the same exact turbine housings, so size-wise they are virtually identical, but Weston has said that the new turbine found in the sxe is clipped from the Borg Warner 82/91 turbine. Is the design itself any different and how does it flow/spool compared to the older j trim if so?

Both are one in the same, and yes it is re-profiled from the 82/91mm turbine wheel found in turbocharger #169011.