We pride ourselves in our customer service. We will always do all we can to resolve in fast time. Will not fit the OEM M5 or Non-Sport bumper model. Product Name: BMW Rear Bumper Diffuser. Style: M5 Competition Style. Material: High Quality ABS Plastic. Surface Finish: Glossy Painted. Easy to use and to operate. Excellent Fitment and Great Quality. Decorate your car charming luxury vivid. Easy to use and to operate at affordable prices. Perfect cover that is useful, helpful and so practical. This product perfectly conforms to the automobile design concept, It will make your car more beautiful, have a better driving experience. Professional installation is highly recommended. Instruction is not included. Please allow 0.5-1 inch difference due to manual measurement. We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. Please confirm your vehicle matches the parts compatibility chart. Day after we received your cleared payme. We check all items before sending out. All products are brand new, never been used or refurbished. Most packets arrive in 3 days. If there is any delay, it may be caused by bad weather. Busy season and some other reasons. We are not responsible for wrong or undeliverable address. We are only responsible for once re-sending expense for replacement due to defects. But you should leave us a note that Please do not include receipts. And then we will according to your request to send the parcel. 2 How can track my parecl? So you could leave a message when placing the order about how much value you would like to declare.