Features: 1.An aerodynamic part that improves rear tire traction by using the flow of air across the body while driving to apply down force, and improve stable control while driving at high speeds. 2.Provides better aerodynamics for your vehicle, reduces drag, increases fuel efficiency, reinforces downforce, traction and stability. 3.Made of high quality ABS plastic material, anti?corrosion and high strength for maximum durability. 4.Get a track inspired look at a fraction of the cost, simple installation with double?sided tape. 5.Glossy black paint will greatly improve the sporty appearance of your car. Specification: Condition: 100% Brand New_x000D_ Item Type: Roof Wing_x000D_ Material: ABS_x000D_ Color: Glossy Black Painted_x000D_ Mounting Method: ADD-ON_x000D_ Fitment: _x000D_ Fit for 5 Series E60 2004-2010_x000D_ Fit for M5 E60 2004-2010_x000D_ (Only For 4-Door Sedan Models!)_x000D_ _x000D_ FITTING INSTRUCTIONS:_x000D_ 1. Make sure that the mounting surface is deaned thoroughly afterward._x000D_ 2. Test fit the spoiler prior to installing._x000D_ 3. Line up the spoiler on the rear window and mark its proper positioning with painter's tape._x000D_ 4. Peel the red backing of the tape approximately 2 inches from either side of the spoiler._x000D_ 5. Place the spoiler on the car without removing all of the red backing of the tape._x000D_ 6. Once you have the spoiler aligned into the correct position, carefully remove the red backing of the tape while the spoiler is simultaneously being pressed firmly into place. It is recommended that two people complete this step._x000D_ 7. Apply pressure to the spoiler after it is installed with painter's tape, with extra attention given to the corners. It is recommended that you do not drive the car until the spoiler is given time to solidify firmly to the rear window.