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Purpose of Exhaust Pipes

A variety of parts and components make up a cars exhaust system. The exhaust system expels waste gases and reduces noise during the process. An exhaust pipe is part of the exhaust system.

Function

The exhaust pipe connects parts of the exhaust system together to allow gases to flow through the sysem. Most exhaust pipes connect the exhaust manifold to the muffler units. The exhaust pipe of a newer engine also connects to the catalytic converter.

Identification

Exhaust pipes deal with high temperature gases so are usually made of stainless steel although zinc or aluminum plated steel are also possible. Rough edges, bends and kinks slow down the exhaust system so high performance exhaust pipes are smooth inside with smooth curves and few bends.

Classification

Exhaust pipes are classified by diameter. Two-inch diameters are the common width of street cars, while faster cars use exhaust pipes with a 3-inch diameter. A wider exhaust pipe leads to better performance because exhaust gas moves faster.