ok, i know this is asked a million times, but i need to know. im converting to rear disc and want to make sure i knock it all out at once with no hassle. do i really have to change the master and proportioning valve, what year integra should i get it from.ive heard stock is fine but with some extra pedal travel. also someone told me i would have to flare the lines for a gsr master, does the same go for an ls master seeing it is smaller. is there a master i could swap with no problem of flaring. i do not know how to flare and would like to do this with the least amont of problems. don't mean to be a pest just looking for help.