Auto Parts Catalytic Converter fits Subaru Forester Impreza Legacy Outback 2006 – 2010 2.5L

The three-way catalytic shell is generally made of high-temperature-resistant materials and has a certain anti-rust function;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 turn into harmless gases, allowing car exhaust to be purified