theres 2 version to the s-oc. i have the older one and it doesnt use a helper spring.

 

Hey bro, is your ride bumpy with these coils? I feel like a bobble head when im driving, it bounces so much i get a mild headache. What could be the reason??

 

Does anyone know what length the tanabe pro s-oc 350z springs are? I know bc's are 200mm and 180mm for their optional shorter springs, but I can't find the specs on the pro210. And my vendor and tanabe have not been responding

 

has anyone seen or ordered from this list?: http://www.tanabe-usa.com/pro210.asp?id=10

I was thinking about ordering shorter sized springs based on that list, do you guys think it would work? I asked tanabe but still waiting, any help from you guys would be nice, thanks

 

Bump bump, anyone know what the length/diameter of the pro210 springs on the 350z/370z are? Also, is 150mm length too short? Thinking about purchasing here: http://mynismo.com/products/?id=2803

 

bump