How are performance brakes supposed to work on a F-150? Performance brake lines are designed to withstand thousands of PSIs of hydraulic fluid pressure while delivering the necessary grip for the pads to latch onto the rotors. Performance brake cooling products are designed to deliver plenty of air to your brakes, keeping them within the necessary temperature range. Why are my brake pads worn out on my F-150? If you notice excessive wear on your brake pads or rotors, the culprit may be your F-150 brake calipers. These are important parts of your brake system. If they wear out, your...