AZRA BMW 4 Series | F32 / F33 / F36 | Carbon Fiber Rear Diffuser | 2014 - 2019AZRA BMW 4 Series F32 F33 F36 Carbon Fiber Rear Diffuser 2014 2019 Description Transform the rear end of your BMW 4 Series (F32 F33 F36) with the AZRA Carbon Fiber Rear Diffuser. Crafted from high quality wet carbon fiber, this rear diffuser is designed to enhance the aggressive styling of your vehicle. The Carbon Fiber Rear Diffuser features a unique design that improves aerodynamics and reduces drag, enhancing the performance and efficiency of your