What to Do When the Exhaust Gets Louder After Removing the Catalytic Converter?

[LaGraham]

The only solution is to replace it with a new catalytic converter. Here is some relevant information: The role of the catalytic converter: The catalytic converter plays a part in noise reduction. If the catalytic converter is hollowed out, the exhaust system is prone to producing various noises and resonance. After hollowing out the catalytic converter, the entire system loses its ability to purify exhaust gases, which can cause significant inconvenience during annual vehicle inspections. Additional information: Consequences of removing the car's catalytic converter: 1. After removing the catalytic converter, the vehicle's exhaust noise becomes much louder, and the exhaust odor intensifies. The vehicle may fail annual inspections due to excessive exhaust pollution. 2. Composition of the catalytic converter: It mainly consists of asbestos fiber felt, purifying agents, a carrier, and metals such as platinum, rhodium, and palladium. Among these, platinum, rhodium, and palladium are the primary catalysts in the catalytic converter, effectively reducing nitrogen oxides and particulate matter in the exhaust.