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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
A popular up grade is to 22/28mm torsion bars. If starting with 18.8 /25mm torsion bars this is:

18.8 to 22mm is 87% stiffer.

25 to 29mm is 81% stiffer.

24 to 29mm is 113% stiffer. (pre 86 rear)

Caution using this by itself as the sway bar may be almost half the effective wheel spring rate.
Old 08-18-2009, 08:54 AM
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