ENGINE AND EXHAUST STRUCTURE

原文（中国語）

An engine includes: an engine body; an exhaust pipe through which an exhaust gas discharged from the engine body flows; and a downstream device including a downstream inlet to which the exhaust pipe is connected. The engine body includes a first cylinder, a second cylinder, a first exhaust port that communicates with the first cylinder, and a second exhaust port that communicates with the second cylinder. The exhaust pipe includes a first exhaust pipe connected to an outlet of the first exhaust port, and a second exhaust pipe connected to an outlet of the second exhaust port. The downstream inlet includes a first inlet to which a downstream end of the first exhaust pipe is connected, and a second inlet to which a downstream end of the second exhaust pipe is connected. A cross section of the downstream inlet has a point-symmetric shape around an axis extending along a connection direction of the downstream inlet and the exhaust pipe to allow the downstream device to connect to the exhaust pipe when the downstream device is in both a first posture and a second posture that is rotated 180 degrees from the first posture.