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This paper deals with the application of Finite Element Analysis in accelerating the development of an automotive muffler. The essential function of a muffler is to route the exhaust gases from the engine exhaust manifold while reducing the noise and back-pressure. Noise reduction is an emerging concern in the automotive industry, and reduction in back-pressure enhances the fuel economy of the engine. Virtual simulation for back-pressure testing is performed by Computational Fluid Dynamic (CFD) analysis using AcuSolve CFD. Finite Element (FE) model generation of the muffler structure is performed using HyperMesh as the preprocessor. The structural mesh is modeled using 2D shell elements, wherein the internal tubes with fine perforated holes are considered. The CFD fluid meshing is done with tetra elements using AcuConsole as the CFD preprocessor.