The reason being is that the exhaust not only releases gases and vapors but humidity as well. That is the reason why at times u notice it sweating.
To reduce the noise created by the exhaust gases.
A puff of smoke that's in a shape of the exhaust pipe A gasket/seal that is shaped like a donut. They are used between the manifold and the exhaust pipe.
A diesel exhaust tip fits on the ends of the exhaust pipe. It is mainly a cosmetic piece that comes in different styles to enhance the look of the exhaust pipe.
hacksaw
An exhaust pipe is used to excrete the co2 from the gas that has been burned in the engine it is usually snakes to thw back or side of the truck so that it is out of the way. If you get a bigger exhaust pipe than the stock one you can usually get some more power from your engine. You can also get an exhaust kit with a switch the can change the amount of exhaust exiting the pipes.
an exhaust flange gasket, is the gasket,commonly called a donut that is used to seal where the exhaust pipe is bolted to the exhaust manifold
Copper can rust
Ribbed, bendable steel pipe used on combustion engine exhaust system.
A simple hack saw will get the job done.
A penny will rust faster because it made entirely of zinc with a thin outer coating of copper, and zinc is made to rust unlike nickel which is used to make nickels, dimes, etc...
It will rust fairly quickly causing brown water and over time will rust through and leak.
Due to the type of metal used in the production of the exhaust pipes, it is very normal for any motorcycle exhaust pipe to turn red when running, especially at an idle. When the bike is moving the air cools the pipe. That is why the street bikes have chrome covers, so you don't see the red/blue pipe.