If you remove the inner core of a catalytic converter in truck will it improve sound and performance?

No, removing the inner core of a catalytic converter will not improve sound or performance in a truck. In fact, it is illegal in many places to remove the catalytic converter from a vehicle, as it is an important part of the emissions system and helps to reduce harmful pollutants from being released into the air.

Removing the inner core of the catalytic converter can also cause the following problems:

* Increased emissions: The catalytic converter helps to convert harmful pollutants, such as carbon monoxide, hydrocarbons, and nitrogen oxides, into less harmful substances. Removing the catalytic converter will increase the amount of these pollutants emitted from the vehicle.

* Decreased performance: The catalytic converter helps to improve the efficiency of the engine by reducing backpressure. Removing the catalytic converter will increase backpressure, which can lead to decreased engine performance.

* Increased noise: The catalytic converter helps to reduce noise from the exhaust system. Removing the catalytic converter will make the exhaust system louder.