Standby generator

An exhaust system for an engine that produces an exhaust gas during operation. The exhaust system includes a manifold in fluid communication with the engine to receive the exhaust gas and a conduit extending from the manifold in a first direction. An outlet manifold is coupled to the conduit and extends in a second direction substantially normal to the first direction. The outlet manifold defines an aperture oriented such that exhaust gas passes through the aperture and out of the outlet manifold in a third direction that is substantially opposite the first direction.