You will need
FOCUS RS BREMBOS,
FOCUS RS DISCS
FOCUS RS PADS
CUSTOM BRACKETS(ZOO MOTORSPORT FOR £70)
EXTRA LONG BRAIDED HOSE
WHEEL SPACERS FOR 17,S unless you have got COMPOMOTIVES.

Here,s some pics of mine.








Had to use HUBCENTRIC SPACERS on mine to fit the wheels.



All in,your looking at around £350-£400 to do this conversion.