Street Scene 950-70672 15-17 Mustang Window Side Ducts Installs to the vehicle quarter windows with double-sided tape. No cutting or drilling is required. Made from tough urethane that is Matte Black in color. These louvers will require prepping and painting prior to installation. These louvers are open so you can see through them from inside the vehicle. This kit includes: 1-left window louver & 1-right window louver as well as detailed instructions and hardware.