been experiencing brake pedal to the floor intermittently,lately. so this morning i change the master brake pump or master cylinder some ppl call it.its not tough, but kinna hassle. the brake metal hose can be tricky to install especially the bottom hose. since this job would splill lot of brake fluid&bleeding, i took the opportunity to change the fuild as well. verdict: if u think that e30 braking suxx.. yea its still suxx even with the new master pump,personally even with bigger booster, i doubt the brake would be good for standard e30... word of advise, if u need m3 braking power, get urself an m3...:top: