Investigation on Effect of Extended Inlet and Outlet Tubes on Single Expansion Chamber muffler for Noise Reduction Mahesh V Kulkarni, Dr. Ravindra B Ingle Department of Mechanical Engineering, MAEER’s MIT, Pune, India Department of Mechanical Engineering, MKSSS’s CUMMINS COEW , Pune, India (Corresponding Author), Assistant Professor of Mechanical Engineering Department, MAEER’s Maharashtra Institute of Technology, Kothrud, Pune 411038(MH) India Professor and Head of Mechanical Engineering Department, MKSSS’s Cummins College of Engineering for Women, Pune411052 (MH) India Department of Mechanical Engineering, Sinhgad College of Engineering, SPPU, Pune, India.