Does anyone know what the difference is likley to be between a set of Sti Version 3 OE springs and a set of Eibachs.

i.e harder/softer/lower etc....

I am currently running Eibachs on Classic UK OE Shocks.

I have picked up a set of KYB AGX Adjustables fitted with STi 3 OE Springs.

Wondering if it is worth sticking to the STi Springs or swapping the Eibachs onto the KYB's ???

Cheers