Smidydevil: It will be very close you'll most prob have to shave abit more off the caiplers.

Johndq: You'll find the biggest and best oem caipler upgrade you can fit under them without mods is fiesta st setup which is focus st170 cailpers on 20mm smaller cairrers

Minder: what johndq was saying that you can not fit 300mm setup under rs2000 wheels without grinding the caiplers down which is true.