This 5 Inch OD to 3.5 Inch OD Aluminized Reducer is a practical and versatile solution for most makes and models. Made of durable aluminized steel, it features a 5-inch outer diameter (Measurement A) and a 3-inch inner diameter (Measurement B), with an overall length of 8 inches. Sold individually, this reducer is a reliable choice for reducing exhaust pipe size and improving performance. Its sturdy construction ensures long-lasting use, making it a smart investment for any vehicle owner.