- Use a pipe plug: this is the most common and effective method to plug an exhaust pipe. A pipe plug is a solid piece of metal or plastic that is inserted into the end of the pipe and held in place with a nut or bolt, expanding a rubber/fiberglass gasket to seal the pipe.
- Use a rubber expansion plug: this is a temporary solution to plug an exhaust pipe. A rubber expansion plug is a cone-shaped piece of rubber that is inserted into the end of the pipe and expanded with a special tool to create a seal.
- Use a metal expansion plug: this is a more permanent solution to plug an exhaust pipe. A metal expansion plug is a cylindrical piece of metal that is inserted into the end of the pipe and expanded with a special tool to create a seal.
