The Nissan 240SX Exhaust Manifold takes the hot gases that escape from the cylinder head of the engine and channels them down to one opening leading to the rest of the exhaust system. The Exhaust Manifold means the poisonous gases will flow toward the catalytic converter, muffler, and tailpipe and not into the passenger compartment. The Exhaust Manifold is not free to move once bolted to the head using studs, nuts, and a sealing gasket. It is common to have a cast-iron structure because it is capable of withstanding constant thermal stress. Some of the units feature a heat shield that curbs the transfer of heat to surrounding parts and to the floor of the cabin. On the Nissan 240SX, the Exhaust Manifold also works to reduce backpressure. Furthermore, this prevents intake reversion that can alter the air-fuel mixture. Finally, this will help improve engine performance as well. Routine inspections of a Nissan 240SX's Exhaust Manifold gasket can spot leaks. Due to the fact that the Exhaust Manifold connects one tube from each cylinder into a single passage, the configuration is consistent with the engine's cylinder count to ensure even gas collection for dependable operation in every Nissan 240SX.
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