Perfectly matched with the vehicle, and can be installed easily to existing exhaust system, cutting and welding may be required, professional installation is highly recommended. It is resistant to thermal shock and cracking, long service life. It is high corrosion and wear resistance. Main function is to convert gases, pollutants to harmless gases, helps to purify treat car exhaust. By using it, it can help to improve exhaust gas velocity, save horsepower and torque. Great emissions control, high efficiency and work efficiently. Name:Catalytic Converter Converter Type: Universal Fit Body Shape: Round Inlet/Outlet Diameter: 2inch Outer diameter Engine Limit: 2.0L Color:silver Material: metal Applicable models: For vehicles with 2 inches outer diameter exhaust pipe. Package Contents: 3x Catalytic Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.