Things like this are why they call it "tuner friendly."
There has been a lot of criticism directed at Toyota and Subaru over the lack of any kind of faster version of the FR-S/BRZ. And while we definitely see the potential for the companies to sell some more units if there was such a version, we also understand that the car was meant in many ways to be a sort of blank canvass. The understanding is that if you want a fast one, you have to do it yourself, the manufacturer is only supplying a good starting point.
It's a pretty hardline approach, but when you see a good example of a tuned FR-S/BRZ, it does make sense. The car here is such an example.