Abstract: An exhaust tube capable of having a better silencing effect without adversely affecting the horsepower output of an engine is provided. The exhaust tube includes a tube body having two end plates, two spaced disks dividing the tube body into three gas chambers and a pipe having an expanded first end, a first horizontal portion, an inclined portion having a verturi tube, a perforated second horizontal portion, and a second opposite free end.

Abstract: An exhaust silencer for a car includes a housing, a partitioning diaphragm plate, a conduction pipe for conducting therethrough an exhaust gas from the car engine, an exhaust pipe exhausting thereout the exhaust gas to the atmosphere, an exhaust conduit capable of exhausting therethrough the exhaust gas, a valve mounted in the conduit, and a controlling device responsive to the rpm of the car engine for enabling the valve to/not to block up the conduit so that the exhaust gas can be exhausted to the atmosphere in a quicker manner, if desired.