The 48 Inch Curve Top Stack with 8 Inch Reduced to 5 Inch O.D. Plain Bottom is a high-quality, chrome-plated exhaust that fits most truck makes and models. Designed with OEM quality, this stack is measured by the outer diameter and is sold individually. It is a practical and reliable choice for truck owners looking to replace their existing exhaust system. With its sleek design and durable construction, this stack offers both style and functionality. Upgrade your truck's exhaust with the Lincoln Chrome 11112015BJJ.