The turbocharger exhaust manifold is a channel that drives up the exhaust from the engine and plays an important role in the exhaust manifold. The exhaust manifold is installed at the engine due to heat and volumetric flow of the exhaust gases from the engine. The invention of the turbocharger needs to be advanced since the automotive industry keeps growing to make sure the performance of the turbocharger is at its best. There are several designs of exhaust manifolds that have been tested in this study to compare with the performance of the turbocharger. In this study, the method used was computational fluid dynamics to evaluate and compare the effect of three shapes of the exhaust manifolds on certain highlighted parameters. The focus was on validating certain chosen performance parameters such as velocity of air intake, pressure ratio of air, and rpm of the turbo wheel with experimental results. The result concluded which design was the best and having a great performance that was used commonly in the automotive industry.