Patent ID: 7930883

Claim:
An exhaust device for a six-cylinder engine in which the first, second, third, fourth, fifth, and sixth cylinders are ignited in that order, the exhaust device comprising: an exhaust manifold extending from the first, second, third, fourth, fifth, and sixth cylinders, the exhaust manifold comprising: first, second, third, fourth, fifth, and sixth upstream exhaust pipes extending respectively from the first, second, third, fourth, fifth, and sixth cylinders; first, second, and third midway exhaust pipes extending respectively from a first joined portion of ends of the first and fourth upstream exhaust pipes, a second joined portion of ends of the second and fifth upstream exhaust pipes, and a third joined portion of ends of the third and sixth upstream exhaust pipes; and a downstream exhaust pipe connecting extended ends of the first, second, and third midway exhaust pipes to the ambient atmosphere; wherein the first, second, third, fourth, fifth, and sixth cylinders define banks in a V-configuration, a first one of the banks being defined by the first, third and fifth cylinders, and a second one of the banks being defined by the second, fourth and sixth cylinders, and the first to sixth cylinders are arranged first to sixth axially along a crankshaft of the engine.