Abstract: An exhaust pipe structure including paired separate exhaust pipes configured so that the paired separate exhaust pipes are supported in a vehicle provided horizontally in a manner such that a vertical load is applied from a first exhaust pipe, by a moment that turns the first exhaust pipe about an axis connecting two support members of the first exhaust pipe due to a weight of the first exhaust pipe, to a universal joint, and a vertical load is applied from a second exhaust pipe, by a moment that turns the second exhaust pipe about an axis connecting two support members of the second exhaust pipe due to a weight of the second exhaust pipe, to the universal joint. The vertical loads are approximately the same magnitude and act in opposite directions to combine to be substantially zero.

Abstract: A center of gravity (G1) of a second exhaust pipe (12) is located on the side of an axis (J1) connecting two associated support members (16, 17) that is distal to a ball joint (15). Thus, creating a moment that applies a load (F1) to a ball joint (15) that presses the ball joint (15) up toward the vehicle body. In turn, by locating a center of gravity (G2) of a third exhaust pipe (13) on the side of an axis (J2) connecting two associated support members (19, 20) that is proximal to the ball joint (15) the weight of the third exhaust pipe (13) creates a moment which that applies a load (F2) to the ball joint (15) that presses the ball joint (15) down away from the vehicle body. Consequently, the load (F1) and the load (F2) of approximately the same magnitude act in opposite directions.

Abstract: A substantially elliptic tubular muffler device mounted to a vehicle is provided. The muffler device is provided in such a manner that a center axis extends along a lateral direction of a vehicle. The muffler device is provided with an inlet portion introducing exhaust gas of an engine to the muffler device, and an outlet portion discharging the exhaust gas to the outside from the muffler device. The muffler device has a circumferential surface portion formed substantially in an elliptic tubular shape, and a pair of end plates provided in such a manner as to cover both end opening portions of the circumferential surface portion. The inlet portion is connected to one of a pair of end plates, and the outlet portion is connected to the circumferential surface portion.

Abstract: A center of gravity (G1) of a second exhaust pipe (12) is located on the side of an axis (J1) connecting two associated support members (16, 17) that is distal to a ball joint (15). Thus, creating a moment that applies a load (F1) to a ball joint (15 that presses the ball joint (15) up toward the vehicle body. In turn, by locating a center of gravity (G2) of a third exhaust pipe (13) on the side of an axis (J2) connecting two associated support members (19, 20) that is proximal to the ball joint (15) the weight of the third exhaust pipe (13) creates a moment which that applies a load (F2) to the ball joint (15) that presses the ball joint (15) down away from the vehicle body. Consequently, the load (F1) and the load (F2) of approximately the same magnitude act in opposite directions.