The Grand Rock 4 In I.D/O.D or O.D/O.D Diameter 60 Degree Elbow Pipe is a practical and versatile product that fits most makes and models. Made with aluminized material, it offers durability and longevity. With a 4-inch ID/OD or OD/OD diameter and 8 inches length on each side, it provides a perfect fit for various applications. The 4.5-inch center line radius ensures smooth airflow and efficient performance. Sold individually, this elbow pipe is a reliable choice for those seeking a high-quality and compatible solution.