You need some type of back pressure or you will warp your valves and to whoever said you will gain horsepower, you a not correct with the given situation. His header is not built/molded to create enough back pressure without an exhaust.
You need some type of back pressure or you will warp your valves and to whoever said you will gain horsepower, you a not correct with the given situation. His header is not built/molded to create enough back pressure without an exhaust.
ThisOriginally Posted by On_Her_Face
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