An Induction System consists of parts such as pipes, plumbing, etc that carries the fuel as well as air into the engine and the length of the same alters the torque.
The parts such as pipes, plumbing, etc that carry the fuel as well as air into the engine is known as Induction system. It also includes systems such as air filters, air intake, fuel injection system, ports and manifolds. The engine’s torque is altered according to the length of intake system. In case of a long intake system the torque delivered will be higher. An induction system leads inside the engine whereas an exhaust system leads out of it.