Compatible For:\r 2007-2009 Toyota Tundra 5.7L\r \r 1. It is resistant to thermal shock and cracking, long service life.\r 2. It is highly corrosion and wears resistant.\r 3. The main function is to convert toxic gases, and pollutants to harmless gases, helpincertifications:OBD-II , Federal EPA , Non-CARB, material:Stainless steel, restricted states:California, new york, colorado, maine, fitment type:Direct replacement, engine:5.7L, substrate:Ceramic, warranty:5 years or 50,000 miles limited