In order to transport the air to the outlet of the brake ventilation, a suitable inlet is essential. The F8x M3/M4 does not have factory inlet ducts in the front bumper like the M2 Competition. What your car has, however, are 2 coolers on the side behind the bumper! So why not use the existing airflow efficiently?

In order not to let the air swirl around randomly in the wheel arch after the cooler, Speed Engineering have developed a duct that can be installed with minimal effort and leads the air around the wheel and a connection via a 40 cm long hose (per side) to the outlet connects. Tests have shown that this does not create any significant back pressure behind the radiator and in the event of extreme speeds and increasing pressure, the ducts do not present any obstacles to the escaping air behind the radiator.

The different models vary slightly in the wheel position, coupled with different chassis geometries and wheel and tyre combinations, it is impossible for all variants to be covered. In the worst case, the wheel could hit the ducting when the steering wheel is fully turned (which should only be the case when parking), which cannot damage the tyre. In this case we would ask you to do without the last ¼ of the steering turns.

The required brake hose diameter is 51mm (not included). The matching brake hose and hose clamps are optionally available to order. A complete front brake cooling kit for the F8x M3/M4 is also available here.

Suitable for F80 M3 Sedan, F82 M4 Coupe and F83 M4 Convertible (incl. Competition, CS and GTS) models.