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The exhaust system of Toyota is made up of a number of working components and parts. To have even just one failing part in the system, the performance of the exhaust assembly and the entire auto will be compromised. One of the integral exhaust parts of every Toyota model is the Toyota Exhaust Manifold. The exhaust manifold, also known as the header, works well with the other pipes which make up the entire exhaust system. Technically, the exhaust manifold is a pipe that is designed to collect the exhaust gases from the multiple cylinders of the engine, directing these gases into just one pipe. Because of the special function that this part performs, the exhaust manifold may also serve as a connection point for the pipes in the system. Depending on the model and the year of the auto, as well as the emission equipment that is installed in the vehicle, the header may also serve as the mounting location for the hardware of the air injection system or for the oxygen sensor. Typically, the Toyota Exhaust Manifold is crafted from durable materials like cast iron or tubular steel. This exhaust device is usually installed and mounted in the exhaust side of the cylinder head. To make the manifold leak-proof and keep the gases within the pipes, a reliable exhaust gasket is used for the effective sealing of the said part. And although simple cast irons are typically employed in the crafting of the manifold, a restrictive tube may be replaced with individual headers which are designed and tuned for low restriction and better performance if the vehicle owner wants to upgrade the efficiency of the exhaust system and the power-producing capacity of the engine. The headers which are available in the market today can be classified into two. The collector type of headers uses pipes that will merge the collector and can be used in conjunction with the mufflers. The zoomie headers, on the other hand, have no collectors and are used primarily on race cars for racing applications. These aftermarket parts are hardworking components in the Toyota exhaust system. And though these performance components are expected to perform overtime in the system, they rarely encounter problems on the road. However, though the manifold may not be replaced often, it is still imperative to check on the said part regularly. The only thing that the vehicle owner should worry about is the warping that could happen to the pipes because of excessive heat. The use of straightedge or the feeler gauge will allow drivers and vehicle owners to check the machined surface of the exhaust manifold. Another problem that could probably torment every manifold is cracking. This problem is due to the extreme pressure and the high temperature that is generated by the Toyota engine. Typically, this will occur after the Toyota auto passes through a bump on the road and cold water suddenly splashes on its hot surface. If the manifold is warped beyond repair and damaged for a number of reasons, it is better to replace the said part immediately. A replacement Toyota Exhaust Manifold can be easily secured from aftermarket auto parts stores and automotive specialty shops.

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Source by John Garett