High quality muffler pipe welding

My 35 years old car's original muffler pipe welding separated. Since no original part available anymore I tried the 3 big auto parts mufflers not one fit. I went to A 1 Muffler shop on 8970 SW Barbur. A gentleman looked over the counter and said you brought me a Volvo muffler and it is a 740, and it is a wagon, and it is from 1987. Whooo!!!!! I was bloowed away. He recognized the original factory muffler with all the specification that not available for several decade. I asked if he could weld the original muffler with the original pipe back so it will fit. I know little about welding but I know enough if I see a high quality welding what he did. He just save my old car. I would gladly pay what ever it cost but he sad no charge it only took a short time and glad to help. I highly recommend this shop and it's people for their kindness, knowledge and high quality work. THANKS A MILLION. AAAAAA******.