Fitment: Model: Fit for BMW 8 Series G16 840i M850i M-Sport 2018-2023 Year: 2019 2020 2021 2022 2023 Pls check the above fitment information or send us car pictures to verify before order, thanks a lot! Installation: Self-tapping screws are included in the package. Recommend professional installation Specification: Process: Vacuum molding Material: Carbon Fiber (CF) Pattern: 3X3 twill weaven Color: Carbon Fiber Black Packaging: Polyfoam box Package includes: 1x Dry Carbon Fiber Diffuser (This Diffuser is a part of the kit, you can take the whole kit in our store, get the better appearance and save more) Warranty and Returns: Covered by our 30-days money-back guarantee, 1-year Warranty and friendly customer service.