Rick,
In my case, better brakes

LOL. Ever since we fitted that 'normal' Mk4 Escort Master Cylinder at National Day 2003, the brakes havent been great, and im interested to get a proper RS Turbo Master cylinder back on and see if theres an improvement!
So does anyone know if the standard master cylinder IS 25.4mm?
I've just been to Ford, and i think its £137 for a new one (possibly inc the fluid reservoir)