Catalytic Converter for Cadillac SRX 2010-2016 Saab 9-4X 2011 EPA Direct Fit

The working principle of the three-way catalytic converter is: when high-temperature automobile exhaust gas passes through the purification device, the purifier in the three-way catalytic converter will enhance the activity of the three gases CO, HC and NOx, prompting them to undergo certain oxidation-reduction chemical reactions. , where CO is oxidized at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds are oxidized at high temperatures into water (H20) and carbon dioxide; NOx is reduced into nitrogen and oxygen. Three harmful gases are turned into harmless gases, so that car exhaust can be purified.