Various embodiments of an exhaust system for an engine powering a water propulsion device of a watercraft having a hull with a front end and a rear end are disclosed. The water propulsion device is positioned near the rear end of the watercraft, with the engine connected to the hull and positioned generally towards the front end of the watercraft from the water propulsion device and having an output shaft arranged to drive the water propulsion device. The exhaust system routes exhaust from each cylinder or combustion chamber of the engine to a discharge at the rear end of the watercraft.