The 6 Inch ID 18 Inch Long Curved Top Stack is a practical and versatile product that fits most makes and models. With a 6-inch inner diameter and 18 inches in length, it is available in both aluminized steel and chrome finishes. The curved style adds a sleek and stylish touch to your vehicle. Whether you're looking for durability or aesthetics, this stack is a reliable choice. Sold individually, it offers a convenient solution for enhancing your vehicle's exhaust system.