2.5'' inch In/Out Catalytic Converter Universal High Flow Stainle SteelAttention:Due to increased emiions standards, these items are not certified for sale in California, New York, Maine and Colorado.If your vehicle is registered in California, New York, Maine or Colorado , these items can not work on your vehicle. Please check your registration states before you buy.NOTE:Customers strongly advised not to install such parts on vehicles that will be driven on public roads.Specification:Model: I78923Product Name: Catalytic ConverterBody Material: 409 Stainle SteelSubstrate material: CeramicCell Count: 400 CellInlet/Outlet Diameter: 2.5inch/6.35cm inside diameterBody Size: 4inch /10.16cm RoundOverall Length: 11inch / 27.94cmEngine Limit: 2.5LO2 Sensor Port: NoFeatures:- 100% Brand new never used or installed- It is resistant to thermal shock and cracking,long service life.- It is high corrosion and wear resistance.- Main function is to convert toxic gases, Contaminants to harmle gases,helps to purify treat car exhaust.- By using it,it can help to improve exhaust gas flowly, save horsepower and torque.- Great emiions control,high efficient and work efficiently.Package Included:1x 2.5'' Universal Catalytic Converter .