300-cell or 200-cell header?

[Trevor]

The choice of header depends on the vehicle's displacement. Introduction to headers: The header is the component directly connected to the engine's exhaust. It helps purify harmful substances in the exhaust gases. Pros and cons of header modification: Advantages: Upgrading to a higher-flow exhaust header can improve exhaust efficiency, thereby enhancing the vehicle's power output. Disadvantages: If a high-flow catalytic converter is installed, the exhaust often contains more pollutants, which can harm the environment. Additionally, choosing a poorly made header can increase exhaust resonance, making cabin noise more noticeable.