A catalytic converter (often called a “cat”) is an emissions control device fitted to the exhaust system of petrol and diesel vehicles. Catalytic converters are valuable scrap items because they contain platinum group metals (PGMs) — platinum, palladium, and rhodium — which are among the most expensive metals on earth. The value of a cat depends on its type, size, and the specific vehicle it came from. Full cats (containing the complete ceramic honeycomb substrate) are worth significantly more than half or quarter cats where the substrate has deteriorated. At endless metals in Auckland, we grade catalytic converters on site and pay competitive rates for all types.