Suspension help needed! Forester STI

[forester sti]

Lads, My wife is 7 months pregnant and the whiteline springs that are in my car which are the same spring rate as the origional ones are a bit to firm! I've read elsewhere that "corner weighting" can help ride comfort and that it is done by suspension specialists!
So does anyone know of a suspension specialist that could sort me out! I'm running out of spring options but tein do a coilover set with EDFC (or something like that) in car adjustable dampers with 6kg front and 5kg rear spring rates buty I cant find a conversin table for Kg to N/mm or lb/in! Can anyone help on this one??
It's the wifey's car and she's been very good to let me do so much to it (and buy it in the first place) So I really want to sort this out for her!
Any help is greatly appreciated!
Dan

 

[Dagnut]

the coilovers in my legacy are really comfortable as anyone who's been in my car can testify..still solid but supple enough to absorb.. they are NPG made by bridgestone in Japan..they would be perfect for you as they can be stiffened up for track use..fully camber and height adjustable..afaik they need to be imported from japan and info on them is hard to come by..a guy on legacygt.com(us site) filled me in..anything i found was in Japanese...il have dig and see if a can translate it for you...they do a full Subaru range

EDIT

scratch that Dan sorry I couldnt find anything on the net now about them they must be finished making them..which doesn't exactly bode well for me if i need spares!
I reckon TEIN cs would be the job their about the nicest riding coilovers you can buy