Check out this thread!!
This is a discussion on Springs on 07 wagon within the Suspension and Handling forums, part of the Tutorials & DIY category; I want to put spring on my 07 WRX wagon. Looking for info on brands and how much should i ...
I want to put spring on my 07 WRX wagon. Looking for info on brands and how much should i drop it?
Wagons have very specific needs when it comes to springs so make you choice wisely. The above link is wagon specific so you should take the time to read a lot of it if you have time.
Some good options are Prodrives, Pinks, RCE, swift, etc... you do not want to go to low.
I am currently running Prodrive blues w/GR2 struts and could not be happier. If I wanted a taller spring than the blues I would go directly to the Subaru wagon pinks.