Here is the easy guide on generating Subaru 82G transponder key with xhorse vvdi key tool max and super chip xt27.
Menu
Generate transponder
ID70 – ID83 (80 BIT)
SUBARU 82G (80bits)
Chip generated
If xt27 super chip key failed to start engine,
1). Try generate chip again
Try putting the big end of chip closest to ignition coil.
There is only so much space in the chip
Sometimes the signal isn’t strong enough.
2).
Sometimes you need to try another chip (i.e Keydiy chip, handy baby chip)