Enhance the side profile of your BMW 1 Series F20 F21 M-Power with these Side Skirt Extension Diffusers in a premium Gloss Black finish. Manufactured from durable ABS plastic for excellent strength and long-lasting performance, they provide a more aggressive OEM-inspired appearance while improving the sporty styling of your vehicle. Designed for a precise fit and straightforward installation. Please compare your existing side skirts with the listing photos before purchasing to ensure compatibility. Fast dispatch, secure packaging and quality aftermarket replacement part.