An exhaust header is a component of a vehicle's exhaust system that connects the engine's exhaust ports to the exhaust pipe. It is designed to improve the flow of exhaust gases, allowing for better engine performance and efficiency. By reducing back pressure, exhaust headers can enhance horsepower and torque, making them popular among car enthusiasts and racers. Typically made from materials like stainless steel or mild steel, exhaust headers come in various designs, such as shorty headers and long tube headers. The choice of header can affect the sound and performance of the vehicle, making it an important consideration for those looking to upgrade their automobile.