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      11-24-2012, 12:29 PM   #3
M3SQRD
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Drives: E92 M3,R56 S,F22 228iX,F82 M4
Join Date: Jun 2009
Location: EC

iTrader: (2)

Agree with Car54...contact TCK, BimmerWorld or VAC. Discuss your suspension goals as well as other mods (e.g., tires, rim widths, etc) with them and they'll give you spring rate suggestions/options.