This Invidia Mitsubishi EVO Turbo outlet will remove the stock restrictive turbo outlet with the high flow Invidia outlet, allowing your turbo to flow exhaust gasses much more efficiently. It is a direct bolt in for the EVO. It is designed to work with your factory exhaust as well as any exhaust that would keep the factory Turbo outlet and stock donut gasket. It is constructed of fully polished 304 stainless steel. Includes new solid copper exhaust gasket to ensure a proper seal.