The Dynaflex Western Star Constellation & Heritage is a highly practical and efficient product designed for optimal performance. With an 8-inch to 5-inch taper-loc reduction on the top side of the elbow, it seamlessly accepts an 8-inch O.D. stack. Its 85-degree angle ensures smooth airflow and improved functionality. Please check the OEM number 23527-3440 to ensure compatibility. This product is a reliable choice for those seeking a durable and high-performing solution.