Custom made lowering springs by PI (lazy_arse_pie got them for his old si) ment to be 80mm not to sure but they sit really low Shocks and Springs £60 Pic:
and si front bumper both fogs and surrounds (one surround not in pic but do have it) £50
lazy_Ben - Am led to beleive they will since the KA was built on the Fiesta's floorplan. Try going on PI's website can check if partcodes are the same mate.
I checked the PI website but the part codes are different. I reckon lowering it another 40mm would be too much on the back since its already pretty low.