Why is the exhaust pipe noise loud when stepping on the accelerator?

[DiRhett]

Engine noise is directly related to the RPM (revolutions per minute). The higher the RPM, the louder the sound. When you step on the accelerator, the engine RPM increases, and consequently, the noise also becomes louder. Possible causes for this phenomenon include issues with the air filter, spark plugs, ignition wires, gasoline, fuel filter, carburetor, or fuel pump. You can systematically check these components to identify any problems. Here is some relevant information about the car's cabin air filter: 1. Introduction: The car cabin air filter is a specialized filter designed for air purification inside the vehicle compartment. It uses activated carbon composite filter material, which combines highly efficient adsorption material (activated carbon) with long-fiber non-woven fabric, resulting in a compact structure. 2. Function: It effectively filters smoke odors, pollen, dust, harmful gases, and various other odors. The filter also efficiently captures and adsorbs particulate impurities, achieving oil filtration and air purification performance.