not sure if the arb will swap off of your wrx due to the wider track,id check before you start crawling under it...
bet you cant wait,theyre tremendous cars mate, and the springs are yours for £80 complete with spare set of shocks,done about 10k miles
Baz,your sti will have trackstar on it unless its an import-you should have got the documents with it,if not ring trackstar with the number etc to get it reactivated