Are the regular vogtland coilovers not progressive in the front? Or is the only difference between the regular and the GT's spring stiffness? Would I even need a stiffer spring rate in the back if I plan to upgrade to the RS4 RSB? Thanks
-Bobby
StartupRacing
F 575 (Progressive 550 to 625)
R 700
Regular Vogts (Purems.com)
F 550
R 525
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