You'd have to use spacers or the wheels would be lost in the arches. I've seen some Imprezas with some badly made fiberglass 22b arches and the wheels were comical under the arches. I heard there's a company in NI that makes the 22B kits form aluminium and they are supposed to be excellent quality. I think the kit was about 4K stg though but it's a long time since I heard about them so maybe that company is gone now.