When you burn fuel and air in an engine the products contain A mixture of CO2, H2O and N2. H2O contains dissolved oxygen, which combines with the Iron (Fe) in the steel and produces the compound Fe(OH)3 , the all too familiar rust.
There are many different types of exhaust pipes all with different reliabilities. The best type would be stainless steal exhaust pipes which do not rust and therefore last the longest. They are however the most expensive.
Automobile exhaust pipes can be made from several different materials, it depends on the vehicle. Standard auto exhaust pipes are made of a light weight steel tubing, thus they eventually "rust out". Aftermarket pipes can be manufactured from Stainless Steel for longevity, or a steel tubing with a ceramic coating used to reduce heat being radiated from the piping into the engine bay or compartment.
Plastic pipe does not rust, brass does not rust, copper does not rust. Stainless steel does not rust, lead pipe does not rust.
In the exhaust pipes under the truck. In the exhaust pipes under the truck.
Rust is not toxic but it is disagreeable.
Rust?
It collects the exhaust gasses and directs them to the pipes.
dual exhaust
Yes they do
yes, if the trans fluid is hitting the exhaust, but not out of the pipes coming from the outside of the pipes.
Pipes are not made out of iron because they rust to easily.
Copper doesn't rust