An inlet manifold is like a maze that connects your car's engine to the air intake. The purpose of an inlet manifold is to evenly distribute the air to the engine so that it runs smoothly and creates power. Think of it like a tunnel. The engine needs the air that comes in through the tunnel so it can mix it with fuel and turn it into power. The air is drawn into the manifold where it is distributed through a series of channels or passages that lead to your engine's cylinders. This ensures every cylinder receives the right amount of air and fuel to give the engine its maximum performance.