Fitted visions coilovers have Front: 12 kg/mm Rear: 9 kg/mm..
I email them they said that's correct. Does anyone know why they would have higher in rear?? I've never seen such a set up 🤔

 

Maybe I'm missing it, but your post seems to indicate the higher spring rate is in the front.

 

Yes I think I posted wrong, FV has 12 REAR, 9 FRONT.. their website isn't working for a week now😫

 

Ah, gotcha. Even so, those rates seem pretty damn stiff, but perhaps on point for a coil over vs a normal spring. I would love to see the OEM spring rate by comparison, and maybe the same for Eibach's lowering springs.