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The Benefits of Buying Exhaust Manifolds and Headers
Purchasing or upgrading the exhaust manifolds or headers for your car, truck, or suv provides numerous benefits. Exhaust manifolds are tortured over and over by high temperatures. Over time, the intense heat, moisture, and age weakens them. Purchasing a stock replacement is always an option as it provides a new and original look as well as factory performance. There are typically not many options for performance exhaust manifolds or racing exhaust manifolds. However, upgrading the stock exhaust manifolds to racing headers provides additional benefits. Headers allow the engine to breathe much easier and allow the exhaust gas to exit more quickly. The result is an increase in both horsepower and torque. STILLEN offers a wide selection of exhaust manifolds, headers, and exhaust systems to customize your ride.
Buying quality exhaust manifolds or headers can be overwhelming and confusing. There are many different factors to consider when shopping STILLEN exhaust manifolds or headers including different brands, prices, warranties, performance capabilities, and much more. Because car headers or exhaust manifolds are often a significant investment, it is important to do your research and get all your questions answered prior to making a final purchase. If you are trying to learn more about headers or exhaust manifolds, we can help you along the way. Here are some answers to frequently asked questions about exhaust manifolds or headers:
Typically, exhaust manifolds can reach up to around 1200 degrees Fahrenheit. High performance exhaust manifolds for turbo applications will have the highest temperatures.
Exhaust headers are a series of metal tubes that connect the engine cylinder head to the exhaust system, routing the exhaust gas from the engine and away from the vehicle. They bolt to the cylinder head via a flange and merge together in a collector which is larger than the tubes. The collector then either bolts or welds to the rest of the exhaust system.
Performance headers can reach temperatures up to 1600 degrees Fahrenheit.
To wrap an exhaust header, you will need the proper exhaust wrap and exhaust clamps to secure the wrap. Then, begin with one pipe starting at the top and work your way down each tube. Securing a clamp to hold the beginning of the wrap will help to keep in place. At the end of the wrap at the bottom of each tube a clamp is installed to secure the wrap. If wrapping the collector, the same process is used with the correct size clamp installed at the beginning and end of the run.
Aftermarket headers are designed with larger tubes and collectors to allow exhaust gas to escape from the engine much more easily than stock exhaust manifolds. This increases both the engine's horsepower and torque. The larger tubes also alter the sound of the exhaust. Usually aftermarket drag racing headers require modifying or building a custom exhaust system to connect to them to high performance exhaust mufflers.
Exhaust manifolds are mostly made from cast iron. Headers are typically made from steel or stainless steel. Either can be offered painted (typically in black) or with a ceramic coating. The coating provides both a show look and also lowers underhood temperatures and increases horsepower by keeping the hot expanding exhaust gases inside the headers, increasing the speed of the exit through the exhaust.
The Exhaust Header serves the purpose of decreasing the exhaust gases' back pressure to improve engine efficiency. It is usually made of mild steel or stainless steel. The header is fitted to the cylinder heads. In vehicles with an exhaust manifold, exhaust gases from all the cylinders reach the exhaust system through a single exhaust manifold, resulting in the build-up of back pressure. To overcome this, each cylinder is fitted with its own exhaust pipe. These pipes then join together to form a collector.
During the exhaust stroke, exhaust gases are expelled out of the engine cylinder. These gases pass through the respective exhaust pipes into the collector. This process results in a considerable decrease in back pressure as the engine needs less power to expel the exhaust gases. Depending on the engine configuration, there may be one or more exhaust headers.
Over time, the exhaust header may break or develop cracks, resulting in a leak of the exhaust gases. A damaged exhaust header could result in an emission of poisonous exhaust gases which are hazardous. Further, it will fail to minimize the back pressure, which will cause a reduced engine performance. If you are looking to replace a faulty exhaust header, you have come to the right place. At Buy Auto Parts we stock a wide variety of exhaust headers for every car make and model.
STILLEN provides genuine replacements and premium aftermarket parts. To view the parts that fit your vehicle, select the right year, make and model of your car on our online catalog and search products from Magnaflow, Gibson & JBA for vehicle exaust headers.