About 2.5 inch drop. hardest part will be getting the rears in. fronts are cake. once you do it a few times, it is really simple. Quick tip. have a dremmel with a cut off wheel or a hack saw. Cut the brake line retainers on your stock suspension and bend with pliers.. You will know what i mean when you see it. Otherwise, you are disconnecting your brake hoses and bleeding the system.

Stock suspension:

[IMG][/IMG]

04 WRX Sedan suspension:

[IMG][/IMG]

I had sedan units, so my rear was saggin.. you shouldnt have this problem with the wagon units. will be about level all the way across.