Scion has a lot of great parts. But after a long time, the worn catalytic converter might cause huge problems. A catalytic converter is usually made out of platinum, rhodium, palladium, and sometimes gold. The main components of a Scion catalytic converter include a heat shield, catalyst substrate, end seal, and packaging mat. There are lots of great Scion catalytic converter parts on our site. From the body parts to the performance parts, a long catalog of advanced Scion products is given online.