A popular and effective braking upgrade is using the MK4 platform, aluminum rear calipers. Less unsprung weight, larger caliper piston and a vastly improved park brake design are the benefits. They are a drop in upgrade to your early rear-disc setup with our conversion lines.
VW changed the flex hose design of the rear calipers between the MK3 and MK4 platform to a banjo bolt hose fitting. MMP's MK4 caliper conversion flex lines are the missing link. Our conversion lines are DOT approved, and made from reinforced stainless braided hose that virtually eliminates hose flex, giving a very firm pedal feel.