scottalej

I have a 2011 mx5 NC on koni sport shocks with spring rates of Front: 70 N/mm and Rear: 50 N/mm. The problem is that these springs sagged excessively and have now all corroded and subsequently broken. Would Eibach 30mm lower springs work well or are they too soft for the konis? Any other suggestions of spring manufacturers, maybe custom if not too expensive?