The stunning carbon fibre diffuser is offered as an option with the choice of a high-gloss or matt finish. It is a completely new design from the one that comes as standard on the car, and it gives the rear of the car a more aggressive and sporty feel. It shows off the tailpipes to their full extent and integrates the parking sensor mounts. The diffuser allows the use of BMW's tow hook. With Akrapovic diffuser, hands-free trunk-lid opening/closing sensor is not working.