I have offer for rear STi 2 pot caliper (MY98-00 based cars). Yes I know I have only solid disc but only difference between vented 18mm and solid 10mm disc are thickness. Standard single pot caliper is too tight from Legacy are ok but I want more.
So I can buy 2pots but I`am not sure if they could fit directly to OE single pot holder or do I need change lot of expensive parts?

Can anybody help me pleas?