Maybe - maybe not. From his comments, it sounded like something fairly recent. It also surprised me as I thought the ECM's were locked. I'll try and message Dustin for some info. Maybe it's not really a tune but hard parts to get the increase.
I just brought home a new '26 GT vert. At the time of the purchase, my sales rep said there is a performance tune available that can be installed by dealers certified to do that and the increase is 100hp over stock. I didn't go into any additional detail with him but he had something up on his...