Check out our Carbon Fiber Roof Spoiler for the BMW G22 4-Series and 2021+ G82 M4. Add a sporty new style to the back end of your BMW with this roof spoiler. The roof spoiler simply installs on the roof of the car using double sided tape however is always recommended to be done by a professional. Installation should not take over an hour. This roof spoiler, as with all of our carbon fiber parts, comes with a fitment and quality guarantee. We make this item using a genuine 2×2 weave carbon fiber and will perfectly match all your other RW Carbon Fiber products.