I have Koni's at all 4 corners and 200lb springs using coil overs in the front. Ride is not bad around town, just soften the dampening when your not out on the track. The rear Koni's are a pain to adjust and i left at 3/4 stiff, the rear feels like its stiffer over bumps than my front.
Its completely livable every day (mine is my daily car). 250lb springs is pushing it with the stock torsion bars in the back.
Next up for me is 28 or 29mm torsion bars and 300lb springs..
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