Does anyone have the spring rates for the stock suspension for both the MR and the GSR? I searched for awhile and couldn't find anything but I don't believe that this information isn't available somewhere.

 

For the front springs on the evo X:

Stock (3.5kg)
For the rear springs on the evo X:

Stock (2.8-3.68kg)

 

Are these rates for the MR or the GSR? I heard they have different spring rates.

 

I forgot if the MR comes with Eibach Lowering springs stock, although I could have sworn I read that somewhere. It looks like the stock GSR springs are regular rate front, and progressive rear, where as the Eibach are progressive front and rear. Anyone have the progressive spring rate range for the Eibachs? So far they really feel well matched to the car on my daily driver.