Exhaust manifold
（重定向自Exhaust header）
![Diagram of an exhaust manifold from a Kia Rio. 1. manifold; 2. gasket; 3. nut; 4. heat shield; 5. heat shield bolt](/Images/godic/202501/12/Exhaust_Manifold3703.jpg")
![Ceramic-coated exhaust manifold on the side of a performance car](/Images/godic/202501/12/Ceramic_Coating_on_Performance_Car3703.jpg")
![Cut through a 2-1 junction in an exhaust manifold showing pressure, which is inhomogeneous due to centripetal forces, and flow.](/Images/godic/202501/12/Exhaust_junction.svg3703.png")
In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word manifold comes from the Old English word manigfeald (from the Anglo-Saxon manig [many] and feald [fold]) and refers to the folding together of multiple inputs and outputs (in contrast, an inlet or intake manifold supplies air to the cylinders).