Abstract: A brake cooling system that directs cooling air to a vehicle brake assembly. The cooling system includes an air guide that, during operation of the vehicle, receives air, pressurizes air, and directs pressurized air to the brake assembly. The air guide cooperates with a support structure, such as a wheel well liner, provided by the vehicle to define an air passageway that is gradually reduced in cross-section toward the distal end of the air guide so as to transform a relatively low pressure incoming air stream into a relatively higher pressure outgoing air stream. The outgoing air stream is focused on the brake assembly to thereby cool the brake assembly.