http://www.japan-partner.com/list.php?search=subaru

they are legit, just buy the whole car and convert, itll only cost about 5g to get it over here.
My brothers old ITR receipt is from them.

plus you need to do more than just the motor swap, the tranny and the diffs are weak as hell in the RS just like in the regular wrx non sti models, always blowin gears. and if those blow at 250hp, imagine 300 going through.

just tryin to help out

on a side note, if yours is a two door ill buy it from you