Headers have the same purpose as the exhaust manifold although it is more costly. Headers are usually purchased together with other exhaust kits and hardware needed to install it. Its price may be a bit heavy on the pocket but it can give much importance not only on the performance of the exhaust system but of the engine as well. Some auto makes are now equipped with headers in place of exhaust manifolds although most types come as aftermarket replacements.
No matter what component you use, may it be a header or an exhaust manifold, be sure to know the distinct features and configurations of your car since it is of vital consideration in choosing the right part. There are various brand names that can give you long-lasting performance and service such as Mercury exhaust manifolds but be sure that you are transacting business with an authentic trusted store. Be wise in choosing and buying.