The CC2-158 Sanderson Headers are a high-quality exhaust header made of steel with a 3/8 inch flange thickness and a 3.000 inch outlet diameter. These headers feature a natural finish and are coated and heat-resistant for added durability. Designed for gasoline engines, these headers are suitable for all GM straight and angle plug heads and come with round port style and a shorty style. The Sanderson Headers are a reliable and durable option for enhancing the exhaust system of your vehicle.