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The exhaust system in a vehicle has the important job of removing the toxic exhaust fumes produced by the engine from the car. It also functions to enhance engine performance, minimise noise produced when driving and improve fuel efficiency. The exhaust section pipe is an important component of the fuel system, functioning to carry the exhaust fumes through the exhaust system and out of the vehicle.
The exhaust system includes the exhaust manifold, which is fixed to the cylinder head and takes the exhaust fumes from the engine's cylinders into the exhaust pipe; a catalytic converter, which sits between the exhaust manifold and the rear exhaust box, and changes the harmful emissions into water vapour and carbon dioxide; the rear exhaust box which acts as an exhaust silencer; and the exhaust section pipe through which the exhaust travels, and the means by which the fumes reach the tail pipe where they finally leave the vehicle.
The complete exhaust system is fixed together by a setup of gaskets, clamps, flanges and hangers. The exhaust section pipe is commonly made of steel but some manufacturers use stainless steel or aluminized steel, because they are more resistant to rust and therefore generally last longer. But in older exhaust systems, whatever the metal used, corrosion will eventually take its toll.
Although built to be strong and durable, common issues do occur with the exhaust section pipe simply due to wear and tear and old age. Often the main issue with any exhaust system is problems caused by rust. Internal components are subject to moisture created by the process of combustion and rainwater can cause corrosion to the exhaust system over time. Regular, short journeys can speed up damage to the exhaust system because the water in the system doesn't have time to heat up properly which means it doesn't turn back into water vapour and instead lies in the exhaust pipes which will eventually rust away. The exhaust pipe can be subject to damage from pot holes and bumps in the road and rust can cause the exhaust pipe to break and drag on the road. A broken exhaust pipe can be dangerous and should be addressed as soon as possible. Whatever the issue, when replacing the exhaust system it's important to make sure you buy components that will be compatible with your car. The exhaust section pipe is the ideal choice, specifically manufactured for the make and model of your car.