A friend of mine has a 2006 basic Forester.

It's got self levelling suspension and he needs a couple new shocks but they're 400 a piece so was wondering could he get a 2nd set of new age STI shocks+springs+top mounts... Would they fit?

I've got a set I took off my JDM 03 and if they fit his 06 Forester it'll be a right result

 

As long as they came off of 5x100 hubs then they will fit although it would probably suffer from "butt sag" as wagon rear springs are normally required.

A "cheap" option would be non-SLS KYB rear struts and springs

Struts :- 334345(L) 334344 (R)
HD Springs :- RA6028

 

Yeah it's def 5x100.

Hmm, not sure my friend will be keen on a saggy bum lol

Thank you for the info tho...

Alternatively he could use my old shocks on the front... I can't remember which one or ones have failed on his car. But this is handy info

 

Lots more info on SLS and other stuff can be found in the European Forum of Subaruforester.org

http://www.subaruforester.org/vbulletin/f75/