| 摘要 |
An exhaust manifold to be connected to an internal combustion engine with a plurality of exhaust ports in the present invention includes a first upper shell member, a second upper shell member, and a lower shell member. The first upper shell member and the lower shell member are superposed on each other to thereby form a first flow passage to be connected to at least one exhaust port out of the plurality of exhaust ports. The second upper shell member is superposed on the lower shell member with the first upper shell member sandwiched therebetween such that at least a part of the first upper shell member is exposed, to thereby form a second flow passage to be connected to another at least one exhaust port out of the plurality of exhaust ports. |
