here's something interesting to talk smack about. What type of transmission, front and rear diff is in your car?
Find the build code on your trans, look past the turbo and you see a white label with black letters. Write that down. Then go to this link and then to post 1 and there is Rallispec's list of usdm/jdm/prodrive trans for wrx/sti/legacy/forester/etc for the past 20 years.
I have a jdm MY 2005, 35:65 open power split, r-180 plated rear diff and helical front (the good stuff) and dccd.