The Straight Stack 4 Inch I.D Aluminized - 12 Inches is a practical and versatile product that fits most makes and models. With its 4-inch ID and aluminized construction, this stack is built to last. Measuring 12 inches in length, it offers a perfect fit for various applications. Whether you need to replace an existing stack or upgrade your vehicle's exhaust system, this straight stack is a reliable choice. Sold individually, it provides a cost-effective solution without compromising on quality. Trust this durable and efficient stack to enhance your vehicle's performance.