[video]Refer to the YouTube video below, and you will have a better understanding of the working principles of the catalytic converter and tailpipe. Thanks to Automotive System [/video] Description YITAMOTOR's brand new universal fit 2.5" insides diameter 5.9L catalytic converter is designed to meet or even exceed OE quality and performance standards without sacrificing flow rate. Fitment Universal Fit with 2.5" inside diameter catalytic converter. Professional installation would be highly recommended Features 1. Maximum Efficiency Internal ceramic honeycomb structure substrates contain ample metal catalysts and offer a larger surface area to fully react. 2. Stainless Steel Shell Made of high-quality stainless steel material, sturdy, durable, and high temperature resistant. 3. Direct-fit Bolt-on Replacement The OE-style catalytic converter is easy to install without needing any modifications, as it has OE standard bolts. 4. Genuine federal EPA certification Every catalytic converter is stamped with an exclusive EPA number on the shell. Federal EPA certificated catalytic converters are backed by 5 year or 50,000 miles limited warranty. 5. Attention: If your vehicle is registered in California, New York, Colorado & Maine, DO NOT BUY This item.If your vehicle MEETS California REQUIREMENT, BUT NOT REGISTER In California, New York, Colorado & Maine. This will work on your vehicle.Due to the increased emissions standards. This item is not certified for sale in California, New York, Colorado & Maine. Package Included 2 X Catalytic converters [specification] Specifications Brand YITAMOTOR Certifications OBD I / OBD-II / Federal EPA / Non-CARB Material Stainless steel Restricted States California, New York, Colorado & Maine Converter Type Universal Fit Body Shape Round Inlet/Outlet Diameter 2.5" inside diameter Body Length 11" Overall Length 15" Engine Limit 5.9L Oxygen sensor ports 1 Substrate Ceramic Placement on Vehicle Left, Right, Front, Rear Manufacturer Part Number C10O09030 Interchange Part Number 79306,99306HM Package included x 2 catalytic converter Warranty 5 years or 50,000 miles limited [/specification] California Residents: Prop 65 Warning WARNING: Cancer and Reproductive Harm Visit:www.p65warnings.ca.gov [des] - Installation may need Welding and Cutting- Increased Exhaust Flow to Increase Power- Internal Honeycomb Structure Design for Max Exhaust Flow- Not Legal for Sale in CA, NY, CO, and ME- 5-Year or 50,000-mile Limited Warranty [/des]