Ok, I did the proper thing and listened to him and those numbers still don't make any sense.
They took a car whose starting point is ~245 tq 230 HP and with an OTS tune is ~280 tq 240 HP on a dynapak. Added a front mount and a g25-660, lost *boost threshold* and torque while adding 40 HP.
My understanding is if the turbine a/r is too small you would get sooner boost response with it choking at the top end.
With thought I still don't understand what happening here. The numbers don't make sense to me especially combined with their comments.
BIG edit guys, sorry I should have put more thought into the original post.