Wilwood AERO6 Front Hat Kit 14.00 BMW E9xSPECIAL ORDER AERO6 calipers were designed for the specific purpose of providing big capacity braking with large diameter rotors for heavy weight and extreme duty vehicles. For cars, it's the biggest of the big providing big brake performance for show and dual purpose street and track vehicles. For trucks and SUV's, it provides big stopping power for towing, off road, and enhanced braking with wheel and tire upgrades. Kits listed for specific vehicles