before you swap the rears, beef up the fronts first. without good front brakes having more power in the back is bad. do a search on "AD22VF" in the b14 section. my "kit" (aka used parts) is in the mail as we speak.
woops: welcome to nf.com! (i was all in tech forum mode lol)
heres a link
also please read all that you can on that site, if you have anymore questions after that please by all means ask as many as your fingers can type.