Catalytic Converter Compatible with 2007-2018 Altima 2.5L L4 Catalytic Converter High Performance (EPA Compliant) Item Description FITTING: Catalytic Converter Compatible with 2007-2018 Altima L4 2.5L, please check the product description page below for details STANDARDS: This Catalytic Converter Is Designed To meet EPA (Environmental Protection Agency) Pre-OBDII Emissions Requirements. The Catalytic Converter Has Excellent Oxygen Storage Capacity. Double-layered high-temperature Resistance Greatly Increases Flow And Power. EASY TO INSTALL: The Universal Catalytic Converters Match The Original Car And Can Be Easily Installed To The Existing Exhaust System. Cutting And/Or Welding May Be Required. ? See more product details Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.