Anyone who has never heard of a seized mk3 calliper, basically is not very savvy about mk3's

iv had 2 go, they are a slight improvement over mk2 callipers but still do seize
i now run the MK4 rear callipers, as said direct fit, must use MK3 carriers, Mk3 pads or mk4 pads are fine. you do need the hoses making up as i did due to connections been the newer type where as the mk3 is same as mk2
i have pictures in my build thread
performance wise, not gonna see a improvement, but the mk4 callipers are aluminium so no seize and also look much better
id deffo recommend the mod if you get a seized calliper... unfortunately not a cheap thing to do with needing hoses making up and the calipers themselves fetch good money as they are a firm fave with kit car owners too..