Exhaust Pipe
The metal piping that connects various exhaust components (exhaust manifold, catalytic converter, muffler) together.
An exhaust pipe is a segment of metal tubing that connects the various components of a vehicle's exhaust system, running from the exhaust manifold at the engine to the tailpipe at the rear of the vehicle.
The piping is designed to guide hot, toxic combustion gases safely away from the engine bay and passenger cabin. Along the way, the exhaust pipe connects components like the catalytic converter (which treats emissions) and the muffler (which reduces noise).
Exhaust pipes are typically made of aluminized steel or stainless steel to resist the corrosive effects of exhaust acids, condensation, and road salt. However, road moisture and heat cycles eventually lead to rust, pinholes, and cracks.
A leaking exhaust pipe can allow dangerous carbon monoxide fumes to seep into the cabin, and causes a loud blowing noise. Repairing exhaust pipes involves welding patches or clamping new pipe sections in place.