The Grand Rock 8 Inch Length Pipe Reducer is a practical and versatile product designed to fit most makes and models. With a 4 1/2 inch diameter I.D reduced to a 4 inch diameter O.D, this aluminized pipe reducer offers a seamless transition for your exhaust system. Measuring 8 inches in length, it is sold individually and provides a reliable solution for reducing pipe sizes. Its durable construction ensures long-lasting performance, making it an ideal choice for any automotive application. Upgrade your exhaust system with this high-quality pipe reducer for improved efficiency and functionality.