Exhaust Manifold
The exhaust manifold can be made of steel, aluminum, stainless steel, or more commonly cast iron. It attaches to each cylinder to combine into one pipe
Oxygen Sensor
The Oxygen Sensor mesaures oxugen levels in the exhaust to maintain maximum fuel economy. It is mounted in the exhaust manifold or close to it in the exhaust pipe.
Catalytic converter
Converts harmful carbon monoxide and hydrocarbons to water vapor and carbon dioxide and reduces harmful nitrogen oxides. The converter is mounted between the exhaust manifold and the muffler.
Clamps & Hnagers
Clamps and hangers ensure the exhaust system parts have a seamless join and youe exhsuat system is firmly secured in the under carriage of your vehicle.
Muffler
Most mufflers use baffles to bounce the exhaust around dissipating the energy and quieting the noise. If your muffler has a hole in it it is extremely noisy.
Exhaust Pipes
Exhaust pipes join each component between the manifold and tail pipe. It is made of aluminized steel which has better corrosion resistance than plain steel but not better than stainless steel.
Resonator
Many exhaust systems also include a resonator located before or after the muffler. These "mini-muffler" are usually straight pipes filled with sound muffling materials.
Tailpipes
The tailpipe or tailpipes are located at the rear of the vehicle. Gace and vapours travel through the ecxhaust system from the manifold and exit at the tailpipe.