MiniGB06, this is the Tony you got the head from...
Somewhere here there are indeed some good discussions on the change you reference. It seems to have happened for May 2003 builds and this mentions it for the Cooper, but I seem to recall them all becoming more civlilized or less "sporty":
http://www.motoringfile.com/2003/05/...nlinePetition/
The Cooper SS+ = the MCS base suspension, at least it did...
I have a Sep 2002 build MCS and I'm quite certain the SS+. I did find the box in my storage area... Continue to do your research and if you find that these will suit your needs, let me know...
If I find more info to help you, I'll share here.
EDIT/ADD - I just found this... An old thread, understandably, but you might want to reach-out to one of those guys:
http://www.northamericanmotoring.com...t-springs.html
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Weight ('03 IB MCS): 2,424 lbs (corner-balanced, 1/4 tank gas)
WHP: 223 @ 7,300 RPM on 13.5 psi (Mustang, ABF Performance)
Front: -2.2 deg camber, 0 toe, 350# PSS9's, CE28N's, Conti Ext Contact DW, 205/50-16, 36 psi
Rear: -1.6 deg camber, .06 toe in, 340# PSS9's, CE28N's, Conti Ext Contact DW, 205/45-16, 38 psi
