I don't have 4G61T's brakes, but i do have VR4 single pots which are plug and play to Iswara/Saja(reason is due to the fact it's removed from my friend's Iswara) Call me at 016-6259847. Thanks.
vr4 front disk can fit nicely on saga/iswara front brake.no mod at all! well except u may need to change ur brake pump. u wont be able to fully utilise its power.