Zaero Design have mde this Diffuser for the M135i, 128ti and any other F40 M Sport Diffusers with a Dual Exit outlet.
The Diffuser changes the rear of the car completely with its aggressive styling; it features sharp edges the whole way round with 3 fins directly in the middle and 2 others on the left and right side. This whole package creates a great a sporty design on the rear.
When installing, no extra screws or bumper removal is required. This fits directly in place of your original Diffuser. This makes at home install nice and simple. The task can be done with 1 person.
Alternatively, we can install this at our store in Essex. Any local dealer would also be able to fit this product for you.