My 1998 M-3 brake pedal has too much travel and is spongy. I installed big disks with 4 piston calipers (UUC). Otherwise the car is mostly stock. I understand that a larger bore master cyclinder would shorten the pedal travel and make the pedal firmer to pressure. Is there another BMW model that uses a larger bore master cyclinder that can be easily swapped with the M-3? Are there other non-BMW master cyclinders available that will do the job? What should I expect to pay for this parts conversion? Any sage advice will be greatly appreciated.