Braking systems are designed from the ground up so all the parts work together so bit silly changing one part when the other parts might not be compatible with the newer bigger part (amount of fluid moved ect)
Ι have abarth's brembos,brembo drilled discs and ferodo ds2500 and my pedal has softened since I've installed them,that's why I 'm looking for a new master cylinder,as it could be the cause of the problem because abarth's pump has a bit bigger pistons..
Breaking is great but the soft pedal seems weird to me...
But if I have to change the servo too,I can live with the softer pedal that's why I'm asking...