Exhaust Stack PipeAluminum Bellmouth Velocity Stack; 5 in. Inlet O.D.; 8.75 in. Bellmouth O.D.;FEATURES:One Year Limited Warranty1/8 in. Thick T6061 AluminumIdeal For All Motor and Forced Induction Race ApplicationsReduces Turbo LagSignificant Torque and Horsepower GainsVibrant Performance offers a complete range of air intake components for your custom forced induction or custom intake projects. All Vibrant Performance intake components are engineered and designed using the highest quality materials.Vibrant Performance was established in 1997 to design and produce Exhaust and Induction components for the Sport Compact