They list it as a FBM Spec HG
I'll talk with Zach about dialing it back a bit. He tuned another high hp FRS/BRZ that had the MAP kit, that had the same problem with blowing off that hose.
Apparently this guy just had to replace the reservoir with a bigger one. But for the reservoir to be completely empty and fill all the way up, thats a lot of coolant being pushed, and I dont see with the limited amount of space, the reservoir getting much bigger.