Shop is working on a family members 1998 s320. The exhaust was leaking from a rotted clamp. A new donut gasket was purchased but the issue is the clamp. From the factory the exhaust clamps were put on before the flared end of the pipe was made. Therefore the only way to replace the clamp from the factory is to replace the entire exhaust section. What could i buy and bring to the shop for them to use in this application as a clamp?