The tail section of the exhaust gas includes pipes, silencing packages and general tail covers (vents), which are used for noise reduction and decoration. Similar to the double output of some performance cars; Three in the middle of Ferrari 458; Bilateral double-out of Nissan GTR; Four out on the pagani, four out in the middle. They are typical examples of large multi-tailed throats.

Generally speaking, the size of the general tailgate depends on the displacement of the vehicle. The larger the exhaust pipe, the more exhaust gas will be discharged, so the larger the displacement, the more and thicker the tailpipe will be, but this is not true! For example, some cars with smaller displacement can also see double-output, but this is different from cars with larger displacement. Most of the high-power cars have two or one thick pipe, which leads to two small mufflers and then to two tailpipes.

Double-out high-performance car Moreover, the small car is single tube and thin, which leads to a large muffler package and then divides two tail throats, which is mostly decorative. Double exhaust of small cars. Of course, there are some special places, such as the old Mitsubishi EVO, the old Subaru STI, the old GTR, the middle of Megane RS, and the middle of Megane RS, which are relatively small, so it will not affect the exhaust gas circulation. After all, they are mainly performance-oriented. The muffler package of the exhaust pipe can not only reduce the noise, but also change the exhaust airflow through the internal design to change the exhaust sound, which is also the reason for the unique sound waves during exhaust.