Thank you for the info. Bought the BRZ repair kit, it's only 25 EUR and I can return it, if it doesn't fit, but I sure hope it does - guide bolts look same to GT86 ones, not sure about the piston and other small details.
I will post once my mechanic tries it. Fingers crossed.
Btw, compatibility table is quite wide among Subaru models on these parts:
https://alvadi.ee/en/kataloog/varuos...duct-tab-comp2
Toyota is not mentioned however...