Exhaust pipe

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An exhaust pipe is usually tubing used to guide waste exhaust away from engine.

An exhaust system connects to the engine and usually includes a muffler to reduce engine noise.

Two-stroke engine performance pipes include a bulge in the exhaust pipe known as an expansion chamber, which uses the pressure of the exhaust to create a pump that squeezes more air and fuel into the cylinder during the intake stroke. This provides greater power and fuel efficiency.