The 64 Inch Mitred Top Stack with 8 Inch Reduced to 5 Inch O.D. Plain Bottom is a high-quality, chrome-plated exhaust designed for trucks. This OEM-quality product is sold individually and fits most makes and models. The plain bottom exhaust is measured by the outer diameter and is a practical and durable replacement part. Whether you're looking for an OEM replacement or an upgrade, the Lincoln Chrome 11112015BJJ exhaust is a reliable and stylish option for your truck.