They don't make any difference to ultimate braking power assuming the originals aren't swelling up like balloons, but they do give better pedal feel so you can modulate the brakes more effectively.
I'd have thought it would give you more braking power. At some point with standard lines the more force on the pedal would just expand the lines more, whereas with braided lines they cannot expand so the extra force on the pedal is transmitted throught to the calipers/pads ? Definately give you more feel and consistancy though.
Fog
I'd have thought it would give you more braking power. At some point with standard lines the more force on the pedal would just expand the lines more,