The 2020-2021 G80 M3 F82 M4 G83 OEM Style Carbon Fiber Rear Lip Diffuser Spoiler with MP Side Splitter is an aftermarket car part made of carbon fiber that can be installed on BMW G80, G82, and G83 models. It is designed to enhance the aesthetic appeal of the vehicle while also improving its aerodynamics by redirecting the airflow underneath the car. The advantages of installing a 2020-2021 G80 M3 F82 M4 G83 OEM Style Carbon Fiber Rear Lip Diffuser Spoiler with MP Side Splitter on a BMW G80, G82, or G83 include: 1. Improved aerodynamics: The rear lip diffuser spoiler and side splitter can help to redirect airflow underneath the vehicle, which can reduce drag and improve stability at high speeds. 2. Enhanced appearance: The carbon fiber construction and OEM styling of the rear lip diffuser spoiler and side splitter can give the car a more aggressive and sporty look. 3. Lightweight and durable: Carbon fiber is a lightweight and strong material, which can help to improve the performance of the car while also being resistant to wear and tear.