I got them from a store here in Sweden. They are easy to get here, and very cheap. $70 for both front and rear is very cheap.
Yeah, I like them too. They never overheated on any of my five track meets this year.
The part number is:
FDB715-AP (front)
FDB482-AP (rear)
One thing I found that was abit odd with the front set was that they didn't cover the whole front disc area. My friend that has a Protege also bought Premier pads, and his covered the whole disc. Calipers and discs are the same on the Protege and the MX-3. So if you want for the front, you should get the ones for the Protege. I can get the part number if you want.
Here it is on my car:
