How to Check if the Catalytic Converter Has Been Removed?
2 Answers
The safest method is to go to a reliable repair shop and use a lift to check if the catalytic converter is still present under the chassis. Additionally, if the vehicle lacks a catalytic converter, the exhaust sound will be very loud, and the exhaust will emit a very unpleasant odor. Furthermore, if there is a popping sound in the front section of the exhaust pipe when accelerating, it indicates that the catalytic converter is no longer present.
To check if the catalytic converter has been removed, I usually crawl under the car and look at the middle section of the exhaust pipe. The converter looks like a large metal canister, and I feel around for any gaps or signs of cut welds. If it's been removed, that area will appear empty, with just a straight pipe connecting the sections. Additionally, the sound can be a giveaway—after removal, the engine noise becomes noticeably louder, as if there's no buffer left in the exhaust system. Some people do this to gain a bit more power, making the car feel faster during acceleration, but this method is illegal. Environmental regulations are strict, and getting caught can result in hefty fines. The catalytic converter filters toxic substances from the exhaust, and without it, air pollution worsens. I don’t think it’s worth the risk—if it’s broken, it’s better to replace it promptly.
