My RS 25mm one just failed. I could not get a replacement anywhere. I bought a second hand one that turned out to be a 23mm part, but my brakes are the best they have been for years!!! Hopefully Bigg Red can refurbish my original part.
My son had a mk1 mondeo servo and master cylinder on his mk2 fiesta it needs modifying slightly to make the reservoir sit level but as previously stated it has 4 pipes.