Vibration caused in any vibrating structure has a vital role in determining the performance of the structure. Thus, the critical objective in an automobile exhaust system design is lowering the vibration level. It is therefore necessary for a design engineer to predict, describe and assess the dynamics of various system design proposals during product development. The objective of the project is to design and analyse the hangers, Optimise the best hanger locations for minimum damage and to determine the number of hangers required for the entire system. Finite element modelling is carried out for the exhaust system using Altair's pre-processing tool HYPER MESH. Modal analysis is performed by using MSC NASTRAN for exhaust components to determine the natural frequency along with mode shapes. The frequency range considered is between 1 Hz to 200 Hz. Further, a method called ADDOFD (average driving degree of freedom displacement) is carried out to determine the hanger locations. The hangers are located where the displacements are lower. This is then validated analytically.