The exhaust pipe connects to the muffler through a flange or a slip joint. A flange is a flat, circular metal plate that is bolted to the exhaust pipe and the muffler. A slip joint is a type of joint that allows the exhaust pipe and muffler to move independently of each other. The slip joint is made up of two metal tubes that are inserted into each other and then secured with a clamp.
When the exhaust pipe is connected to the muffler, it is important to make sure that the connection is tight and secure. A loose connection can cause the exhaust gases to leak, which can be dangerous and can damage the exhaust system.