CalhounMonster Ambient Light Upgrade for BMW F30 F31 Interior Door Trim IMPROVED ONE PIECE DESIGN! NEW?FACTORY FABRICATED SOLID PLASTIC TRIM. STURDY, UNBREAKABLE Fits F30 F31 F80 with ambient lighting package already present. This trim kit upgrades your existing lighting to give you the new 5 series look in your 3 series, creating a line effect on your door cards as shown in the pics. It makes the existing soft light in your door really pop! How it works: LED lights are directional so without these plastic trim covers the light only shines in a downward direction as a soft illumination towards the door handle. What these plastic strips do is act as a lens, focusing the light passing through the material causing the light to concentrate internally in the layers of plastic and illuminating the strips to form a brighter sharp line that enhances the look of your vehicle. Does not include lights, this is for cars that already have the optional BMW lighting package. You will know if you have the necessary lighting package if you have a row of soft lights in this location. This product is only meant to amplify existing lighting. This kit is custom made to fit BMW F30 F31. Kit contains 4 pieces total consisting of 1 piece per door. Much improved over the 2 piece design. 2 Long = Front (6mm x 540mm) 2 Short = Rear (6mm x 510mm) Angled cut out, press fit in by hand, no tools required! Easily removable, does not alter stock lighting or doors in any way! Video link for product review and installation instructions: https://youtu.be/xNcL0nLbUhY PLEASE NOTE: Priority Mail Shipping for these only. Otherwise, it can take up to 2 weeks for the others because First Class Mail is very slow. We continue to offer the First Class Mail option on our other listing as an economical alternative.