Tien Street Basis vs Progress CS ll coils

SoundEfx

New Member
When it comes to coilovers you have to look at the spring rate.
In my opinion, 6 or 7 K springs are the most comfortable and if you want to be a little more spirited, 8 or 9 K.

Anything more than that and you're venturing into more track spring rate stiffness and those are NOT comfortable for every day driving.

In terms of quality, I could only speak for the Teins and they are top notch.
 
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