Patent ID: 7628663

Claim:
A marine engine exhaust system, comprising: a first manifold; a second manifold; a first corner in fluid communication with said first manifold such that a first gas exiting said first manifold is transferred into said first corner, wherein said first corner has a first corner cooling fluid passageway; a second corner in fluid communication with said second manifold such that a second gas exiting said second manifold is transferred into said second corner, wherein said second corner has a second corner cooling fluid passageway; and a crossover in fluid communication with said first corner and said second corner such that the first gas exiting said first corner is transferred into said crossover and such that the second gas exiting said second corner is transferred into said crossover, wherein said crossover has a crossover cooling fluid passageway configured for receiving cooling fluid, and wherein cooling fluid is transferred from said crossover cooling fluid passageway to said first corner cooling fluid passageway and said second corner cooling fluid passageway.