what mods are needed to bolt up a set of ford st brakes (off a fiesta st150, but same as focus st170 im told) to the front of a s2 rs turbo??

adaptor brackets needed?? or just spacer washers as with cossie calipers??

also, will b using 300mm discs as with the st170 set up, if that makes any difference. i have 17" wheels so thats not a problem

any info appreciated, dont want to buy the brakes until i know they gna fit

 

ok, calipers on st150 arent the same as focus st170 at all, so this throws a spanner in the works even more so lol

so if anybody has any idea what mods are needed to fit st150 fiesta brakes to an escort rst s2, using 300mm discs, feel free to add input