Auto aftermarket 2.5 inches flexible exhaust pipe nipples Exhaust flexible pipes parts double tube

The exhaust pipes are the essential connecting pieces between the individual elements of the exhaust system. They direct the exhaust gases from the cylinders via the manifold through the catalytic converter, particle filter, silencer and tailpipe into the environment. The system must be well sealed so that the exhaust gases cannot get into nature or even into the interior of the vehicle unfiltered.