The automobile exhaust manifold and the intake manifold are different engine components, although the auto novice often mistakenly sees them as the same. To complicate things, the intake manifold and the exhaust manifold both process automobile fuel or gases. One (the intake manifold) processes raw fuel, the other (the exhaust manifold) processes burnt fuel. If you are interested in knowing more about the automobile gasoline combustion engine, it will help you to have a good understanding of these two manifolds and what they contribute to the engine's operation. The information below will help you with this understanding.