Three Way Mini Direct fit Catalytic Converter for Nissan Quest

The so-called "three-way" refers to the three precious metal elements contained in the three-way catalytic converter, namely platinum (Pt), rhodium (Rh), and palladium (Pd). The metal oxides of these three elements have certain chemical reactions. The reaction is catalytic. For this reason, people coat them on a ceramic substrate in the form of a catalyst coating and install them in the exhaust pipe of a car to catalyze the oxidation-reduction reaction of the car's exhaust gas. This is where the three-way catalytic converter gets its name. In the exhaust gas purification process, platinum (Pt) and palladium (Pd) mainly play the role of catalyzing carbon monoxide and hydrocarbons, while rhodium (Rh) mainly plays the role of catalyzing nitrogen oxides. The ceramic matrix is honeycomb-shaped, which can greatly increase the three Catalytic reaction area of the catalytic converter