Abstract: Various installation arrangements for internal combustion engines, for example, may require a variety of different connection arrangements for fluid flow apparatus such as intake/exhaust manifolds, coolant flow apparatus, and the like. Consequently, a range of fluid flow bodies and connectors may be required for each engine model, leading to high unit costs and large inventories. An adaptable fluid flow apparatus according to this invention includes a fluid flow body and an elbow connector. The elbow connector can be mounted to the body in at least three positions so that the flow axis of the elbow connector lies along one of three substantially orthogonal axes. Moreover, the elbow connector can be positioned so that its flow axis lies either substantially parallel to or transverse to the longitudinal axis of the fluid flow body.