Ive seen some people use the STi rear/side aprons on 02-03 sedans, but my question is, will it fit on a bugeye wagon?

They might, I have seen a couple wagons with rear aprons (white one thats slammed and I see every time I am at MPJ). But I do not know if they are factory or after market.

yeah even on the gruppe-s site, they say this apron only fits on 04 wrx/sti's, but i see them on bugeyes. just dont know if its sedan specific or not. hmm