Originally Posted by Haywood
...STI axles - $200
STI rear diff - $200
So this is just a guess, but would this be all I need for a swap from an 04 STi into an 02 wrx? I already have a stop tech big brake kit. and i want to stay on the 5x100 hubs.
Guessing aside. Look into the rear diff and axles you listed with regards to retaining the 5x100 lug pattern. There are a few ways to do what you want but STI rear axles and an R180 will not work with your *WRX* rear hubs. Your existing rear *WRX* axles and an R180 will also not work. Good luck.
*I was making the assumption for your list that you are looking to retain your WRX front and rear knuckle/hub assemblies. If you plan to mix in some 2004 STI knuckles, well that is a different story.