How hot does a 4 cylinder exhaust manifold get?

A 4-cylinder exhaust manifold can reach temperatures between 800 to 1,200 degrees Fahrenheit (427 to 649 degrees Celsius) during normal engine operation. The exact temperature can vary based on engine load, speed, and the specific design of the manifold. Proper insulation and heat shielding are often used to manage these high temperatures and protect surrounding components.