Currently using PFS springs with koni shocks on the top setting and the left front tire is rubbing just a bit when cornering hard. I believe the top setting is the highest setting so I need some new springs. I was thinking 450 front and 350 rear. I go to the track and autocross. I have 17 x 9 45mm offset all the way around with 255 40 tires. Thanks for your help.
Fritz

 

well you might just want to stay with your springs, relocate the battery or get a dyna-bat.. it might solve your problem by taking some of the weight off of that side.

I had Eibach springs and Koni shocks and it rubbed terribly when i'd corner hard... i took off the springs and put the stock springs back on. Now i think i'm just going to save for the Ground Control where i can get a non-progressive spring rate.