I have looked everywhere and I cannot find 07-08 OEM G35 Sport spring rates, does anyone know what they are? I just ordered a set of Impul springs and I'm curious how big of a difference there is going to be in spring rates. And yes, I have done tons of searches throughout the forums and internet, I have only been able to find 03-06 G35 spring rates which do not help me.

 

anyone know?

 

the only thing I know, impul springs are much stiffer than OEM G35S '07-'08 springs. and they are progressive.

 

I would really like to know this as well. I've used the search function and couldn't come up with any numbers. Although someone did offer to measure them?

 

I'm trying to decide if I'm going with 10k or 8k for the rear coils but I don't know stock to compare to

 

I'm interested in this data also.
Sub'd to get info!

Thanks,

Y

 

I hope you mean 8 or 10 kg/mm, 'k' is typically a suffix indicating multiples of a thousand. (: you know, just for clarity....