Vibrant Performance Truck/SUV exhaust tips are made of 304 Stainless Steel for optimum corrosion resistance and then undergo a three stage polishing process for a brilliant, mirror-like finish. Vibrant Performance Truck/SUV tips range from 11 to 20 long and are available in outlet diameters that range from 3 to 4 and inlet diameters that range from 2.25 to 3. Both rolled edge and keen edge designs are available.