A spout for a tub. The spout for the tub includes a spout body having opposite first and second sides. The spout also includes an inlet portion extending from the first side, where the inlet portion includes an inlet bore and an outlet portion extending from the second side, where the outlet portion includes an outlet bore that is in fluid communication with the inlet bore. The spout further includes an engine configured with waterway geometry, wherein the engine is installed in the spout body through the inlet portion. In addition, the spout body is made of a flexible material.