I'm 90% sure my master cyl is going out on me. just have to bleed the lines to make sure of it. But i was wondering if i end up replacing the master can i upgrade at all by using a gsr one or anything else stock? I thought i had seen people listing something along those lines as mods. If so what advantages and disadvantages? Can i just replace the master cyl or do i have to change out/upgrade other parts?