They cost RM280 but they will need to order them -- just go to any spare parts shops or go to STC Auto Parts as they are one of the Toyota parts authorised dealer. You might have to wait for weeks if they don't have it in stock in Malaysia. I'm currently using Hotshot (Australian-made i think) and it has and still is serving me well -- I think that was RM65 or 85, I can't recall correctly.
IMHO, the original cables should cost about the same if you order them from your local spare parts store as they all come from one place - Japan.
However, if you are looking for performance cables, the usual spare parts shops are the last place that you will want to visit. Browse around in these forums, maybe you'll find what you need. Just be sure to buy from a reputable seller! :D
All the best