Notice carefully:-.-The rear diffuser is modified part and not match. Mind it please don't order, thanks Specifications :Color : Glossy BlackMaterial : High ABS PlasticAttachment Method: Adhesive,ScrewsPlace on Vehicle : Front, Rear,LowerQuantity: 5pcs/setManufacture Type: Aftermarket ProductFitment : For BMW F32 F33 F36 4 Series 2014-2020 (Models with M Sport Bumper)-Only Fits Model With M Sport Bumper -Won't Fit Regular Rear Bumper Or ConvertiblePackage Includes :4pcs/set Front Bumper Spoiler Splitter Lip1pcs/set Rear Bumper Diffuser LipFeatures:- and high .-According to the original factory specifications.-Gives your vehicle a 0style and appearance.-Perfect cover that is useful, flexibility and so practical.-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