The Genuine BMW Label Exhaust Emission (My13) - 71227645539 is a small, rectangular adhesive label that is designed to be placed on a vehicle's exhaust system. It contains the words Exhaust Emission in bold, black lettering, along with the BMW logo and the model year My13 in smaller font. This label serves as a visual reminder to the driver and others that the vehicle's exhaust emissions should be monitored and kept within acceptable levels. It is an official BMW product and is specifically designed for use on vehicles from the model year 2013.