The Walker Exhaust 41988~WK Exhaust Reduction Pipe is a high-quality component designed to facilitate seamless connections between exhaust pipes of different diameters. This 4-inch outside diameter (OD) to 3-inch inside diameter (ID) reducer measures 6 inches in length and is constructed from durable aluminized steel, ensuring longevity and resistance to corrosion. Its burr-free construction allows for proper fitment, making it suitable for both weld and clamp installations. The universal fit design offers installation flexibility across various vehicle applications. This exhaust reduction pipe is ideal for fleet operations seeking reliable and efficient exhaust system components to maintain optimal vehicle performance.