The intake type exhaust pipe usually means that the entire exhaust process can be shortened, and even purification devices such as car mufflers can be removed. It is hoped that after modifying the middle and front ends of the exhaust, the car will accelerate faster, the power will become sufficient, and the dynamic auditory effect during engine operation will be improved, avoiding street explosions.

The resistive car muffler is mainly composed of porous tubes and sound-absorbing fibers (absorbent cotton). The sound absorption coefficient of the latter material varies with physical properties such as density and diameter, that is, the higher the fiber density, the smaller the diameter, and the higher the sound absorption coefficient. At the same time, the impact on the noise reduction effect is also related to the overall noise reduction effect. Of course, various factors such as cross-sectional circumference, effective length, and cross-sectional area also affect the noise reduction effect. The larger the circumference and effective length, the better the noise reduction effect.

At the moment of secondary ignition and starting of internal combustion engine vehicles, various structures begin to wear out. Car muffler manufacturers tell you that various components and consumables, including oil, need to be replaced after each mileage of driving. What about electric cars? Due to its different structure from diesel locomotives, there is not much difference in some places.