Hi Naay, I am pleased to assist you. Yes, this semi-universal converter requires additional components for a complete installation. It does not come with all necessary parts, so you need to purchase extra items such as hangers and brackets to ensure proper mounting, gaskets and seals for connecting the converter to the exhaust system, and possibly oxygen sensor fittings if needed. Additionally, since welding is required for installation, you will need welding equipment and materials. If you plan to install it yourself, it's advisable to consult with a professional mechanic or auto parts supplier to determine the exact additional parts required for your specific vehicle. If your vehicle is compatible with the information provided on our website, use the link below to order while the part is in stock. I hope this helps, and enjoy shopping! https://www.carparts.com/catalytic-converter/walker/wk84205?can=CPGG4850_CSQA_20250403

Hi Dee, thank you for reaching out. This product is new. We don't sell used catalytic converters. If your vehicle information and fitment details match this part, you can use this link to order the part and take advantage of our low price for this item: https://www.carparts.com/catalytic-converter/walker/wk84205?can=CPAP3648_CSQA_20241203 I hope this helps. Happy shopping.

Hi Sebastian, thank you for reaching out. Yes. This universal product is legal in California. This item is 50-State legal. You can use this link to order the part and take advantage of our low price for this item: https://www.carparts.com/catalytic-converter/walker/wk84205?can=CPAP3648_CSQA_20240218 I hope this helps. Enjoy shopping.

Hi Luis, I'm glad to assist you. The matching semi-universal type is part number M66557405 (50-State legal). It fits both the left and right rear and you just have to weld on the original piping assembly to this catalytic converter for each side. Grab our sale offer and click the link below to buy it today. Happy shopping! https://www.carparts.com/details/Mercedes_Benz/E350/Magnaflow/Catalytic_Converter/2006/4Matic/6_Cyl_3-dot-5L/M66557405.html?can=cpje1043_CSQA_20240105

Hi Russell, I'm glad to assist you. We have the front part number RC96030006. The rear is DAV19498. Grab our discounted prices and click the two links below to buy them today. Happy shopping! https://www.carparts.com/details/Chevrolet/Cruze_Limited/Evan_Fischer/Catalytic_Converter/2016/Eco/4_Cyl_1-dot-4L/RC96030006.html?can=cpje1043_CSQA_20230707 (front) https://www.carparts.com/details/Chevrolet/Cruze_Limited/Davico/Catalytic_Converter/2016/Eco/4_Cyl_1-dot-4L/DAV19498.html?can=cpje1043_CSQA_20230707 (rear)