Catalyst KT0138 is used in German Mercedes cars. These catalysts have an asymmetrical, flat shape and many lateral convexities on the surface. The outlets are arranged in different planes (one is on the side, the other is angled upwards, looking

Two seemingly identical catalysts. Same brand, same length from hole to hole and inserts of the same color. Smoothed edges and strips extending along their entire length. The same indentation is given, dividing the catalyst into two parts, and the