Abstract: A light-emitting structure of the automotive exhaust tailpipe includes an outer tubular member which is fitted over the exhaust tailpipe and is provided with an inner tubular member fitted thereinto along with a first retaining member. A second retaining member is fitted over the inner tubular member such that a receiving space is formed between the first retaining member and a second retaining member for receiving a heat-resistant piece. The second retaining member is provided with a plurality of light bulb sockets. The automotive exhaust tailpipe is thus provided with a light-emitting effect to reinforce the warning effect of the tail lights of the motor vehicle.

Abstract: An exhaust tube of the rear of an automobile includes a muffler tube and an outer tube. The muffler tube is provided with a plurality of holes in a central area therof. One end of the muffler tube is provided with a concave annular trough and further provided with a convex edge. One end of the outer tube is received within the concave annular trough when the muffler tube is combined with the outer tube. In addition, the inner side of outer tube near the end edge is engaged against the convex edge of the muffler tube.