Notice :.Specifications :Color : BlackMaterial : High Real Carbon FiberAttachment Method : Adhesive tapes, ScrewsPlace on Vehicle : Rear, LowerQuantity : 1pcs/setManufacture Type : Aftermarket ProductFitment : For BMW 1 Series E82 1M / E88 1M Coupe 2 Door 2011-2013NOTE : DO NOT fit for m sport or standard bumper models Package Includes :1pcs/set RZ Style Rear Bumper Diffuser LipFeatures :- and high .-According to the original factory specifications.-Gives your vehicle a 0style and appearance.-Clear 3X3 twill weave carbon, shining surface.-Appropriate Modificataion is required.Note :1. Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm)2. Tape is use for fix the position only, screws are needed in the installation.3. No installation instruction included, we have installed video, but professional installation is highly recommended Important Notice : all of our products are required to be installed in professional Modification car shop , NOT every car shop can make it ,Small install gap is Allowed