BMW Genuine M Performance Left Side Skirt Extension Black Matt 51192350719. Make an impression, make an impact: The black matt side skirt extension further improves the dynamic nature of the vehicle. It consists of UV and temperature resistant PUR, and is perfectly tailored to the vehicle design. The skirt extension is delivered in matt black and can be painted in any desired colour. For a particularly unique, powerful and dynamic look. Benefits of the BMW M Performance side skirt extension, black matt (left) at a glance. Suits the car’s design, as well as other BMW M Performance aerodynamic components. Made of UV-proof, thermally resistant PUR. Can be painted in desired colour. 1 BMW M Performance side skirt extension, left. Special note for the installation location. The information for the installation location “left” resp. “Right” refers always to the driving direction! Represented by part number 3 in the diagram. 4′ F82 M4, 4′ F82 M4 LCI, 4′ F83 M4, 4′ F83 M4 LCI.