The Curved Stack 4 Inch I.D Chrome - 18 Inches is a versatile and practical product that fits most makes and models. With its curved design, 4-inch ID, and 18-inch length, this stack is perfect for enhancing the performance of your vehicle. Made of high-quality chrome, it is durable and long-lasting. Sold individually, this stack is easy to install and will add a sleek and stylish look to your vehicle. Upgrade your ride with the Curved Stack 4 Inch I.D Chrome - 18 Inches today.