Vibrant V-Band Transition Flange - 2.50in. Tube O.D. to 3in. V-BandVibrant Performance V Band Transition Flanges allow you to adapt your exhaust system to a larger or smaller size exhaust tube effortlessly without the need of fabricating an entirely new system. Like the rest of our universal V Band Flanges, the new V Band Transition Flanges provide a gasket free seal thanks to our signature Male Female flange design. These flanges are only offered in the female side of the flange which has been precision machined to