Exhaust gas pipe, and engine

An exhaust gas pipe comprising:

• a plurality of pipe bodies which are formed in a tubular shape centered on an axis and are arranged in a direction of the axis and through which an exhaust gas led from an engine body flows;
• a connection portion connecting a pair of the pipe bodies adjacent to each other in the direction of the axis;
• and
• a gasket which is provided between the pipe body and the connection portion,
• wherein a flange projecting toward an outer peripheral side is provided at an end portion of the pipe body in the direction of the axis,
• wherein the connection portion includes a main connection body which has a tubular shape centered on the axis and a pressing ring which is provided with a facing surface facing the flange while sandwiching the gasket in a gap between the flange and the facing surface, and
• wherein the exhaust gas pipe further comprises:
• coupling members which are provided at intervals in a circumferential direction and coupling the flange and the pressing ring to each other;
• and
• a deformation prevention member that is provided in an outer peripheral region of the gap,
• wherein the deformation prevention member includes a tapered portion of which an axial dimension gradually decreases from an outer radial side to an inner radial side,
• wherein a plurality of the deformation prevention members are provided at intervals in the circumferential direction, and
• wherein the exhaust gas pipe further comprises a wire connecting the plurality of deformation prevention members.