Notice :.Specifications :Color : Glossy BlackMaterial : High ABS PlasticAttachment Method : ScrewsPlace on Vehicle : Rear,LowerManufacture Type : Aftermarket ProductFitment : For BMW 3 Series F30 F31 320i 325i 328i 335i M Sport 2012-2018Note : For M-Sport Version only Package Includes :1 pcs/set Rear Bumper Diffuser LipFeatures- and high .-According to the original factory specifications.-Gives your vehicle a 0style and appearance.-No Modification or Cutting Required.Note :1.Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm)2.No installation instruction included, 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