ANSWERS: 1
  • Headers are an important part of a car's exhaust system. Some stock cars come with headers, but most are manufactured with cast manifolds. Headers are a common aftermarket upgrade for nearly every make, whether it's a Porsche or a Ford.

    Header Description

    A header is generally made up of bent steel or stainless steel tubing. The headers are welded together at one end on a flange that bolts to the car's head. As spent exhaust gasses leave the motor, they travel through the header to the exhaust system and out the car.

    Benefits

    Headers are the most efficient way of getting exhaust gasses out of an engine. The quicker air can be moved into and out of an engine, the more power it can make, which is why headers are used on high-performance cars, hot rods and race cars. Headers are usually larger in diameter than cast manifolds and also have a smoother interior surface, which promotes airflow.

    Problems

    Headers can create excess heat, which can potentially cause other issues with components that are nearby. For instance, carburetors that are located near headers can have problems with vapor lock from the heat. Headers are also noisier than stock manifolds and have the potential to crack or get damaged easier than a cast manifold.

    Who Sells Them?

    Headers are available from a wide variety of sources. Large companies like Jegs stock a large supply for mainly American vehicles. For European vehicles, try specialty companies. eBay is also a great place to find headers. You can also try exhaust shops.

    Installation and Care

    Headers bolt on in place of the stock manifold, usually with the same bolts. To reduce heat soak and protect the headers, wrap them in header tape or have them ceramic-coated.

    Source:

    JBA Headers

    Fabspeed headers for European vehicles

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