Originally Posted by
steve st220
i've got the PI springs fitted with the standard ST220 shocks with no issues,
they've been on for nearly 2yrs now and it still handles perfectly, i got 8"x19" wheels
fitted with 235/35/19 tyres and no rubbing at all, 50mm will be fine mate, i'm in
wales and the roads dont get much worse than here lol.
ST220s are lower than 'regular' Mondeos, and the dampers are firmer. If he lowers it to the same amount as yours on stock dampers the handling will take a turn for the worse. I've driven lots of cars lowered over standard springs and they pretty much all exhibit the same 'choppy' ride.
Sure it's doable, but it's not a good idea.