This product is an OEM oxygen O2 sensor designed for the 2001-2005 Mazda MX-5 Miata. It is a direct fit sensor that is easy to install and is wired for connection. The sensor is located in the lower rear position of the vehicle, making it a specific and accurate replacement part for the Miata model. As a genuine Mazda product, it ensures quality and compatibility with the vehicle's air intake and fuel system.