The dampers and the springs are the same!
The springs will be in the same size/hight

I know, I have one

And as i could understand the question was not about rear anti roll bar
the cabby is stiff any way, because the lack of hard roof
it is stiffen up behind with the blue metal plate that is right behind the rear back seats

suspensions was going to this car:


ended up on this one:


the S2 and the xr3i is lower than the other mk4īs.

donīt remember how much lower


and the dampers and springs are all the same on MK4

one example is:

Burtonpower is selling a koni kit
Part No: KOSSK1
Description: KONI KIT MK3/4 ESCORT '83-90
Other Info: BASE MODELS -40mm/XR3i/TURBO -20mm