they may supply lines that are all the same size . However way back in the 80's when I started doing this Saleen mustangs Svo mustangs and early 1989 MK7 lincoln with rear disc use a 1/4 " line ON the axle housing to go to the calipers . More volume is the answer if you need it I don't know.I run it on my mk 3 and it works great Bob
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